diff --git a/e2e/data-connect/package.json b/e2e/data-connect/package.json
index d9d1f234ab1..58c6fc392bc 100644
--- a/e2e/data-connect/package.json
+++ b/e2e/data-connect/package.json
@@ -13,7 +13,7 @@
     "@types/node": "18.19.83",
     "ts-node": "^10.9.2",
     "tslib": "^2.1.0",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "dependencies": {
     "firebase": "11.8.1"
diff --git a/e2e/data-connect/yarn.lock b/e2e/data-connect/yarn.lock
index d8d5a981fef..245e925ebba 100644
--- a/e2e/data-connect/yarn.lock
+++ b/e2e/data-connect/yarn.lock
@@ -737,10 +737,10 @@ tslib@^2.1.0:
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.8.1.tgz#612efe4ed235d567e8aba5f2a5fab70280ade83f"
   integrity sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==
 
-typescript@5.5.4:
-  version "5.5.4"
-  resolved "https://registry.npmjs.org/typescript/-/typescript-5.5.4.tgz#d9852d6c82bad2d2eda4fd74a5762a8f5909e9ba"
-  integrity sha512-Mtq29sKDAEYP7aljRgtPOpTvOfbwRWlS6dPRzwjdE+C0R4brX/GUyhHSecbHMFLNBLcJIPt9nl9yG5TZ1weH+Q==
+typescript@5.9.2:
+  version "5.9.2"
+  resolved "https://registry.npmjs.org/typescript/-/typescript-5.9.2.tgz#d93450cddec5154a2d5cabe3b8102b83316fb2a6"
+  integrity sha512-CWBzXQrc/qOkhidw1OzBTQuYRbfyxDXJMVJ1XNwUHGROVmuaeiEm3OslpZ1RV96d7SKKjZKrSJu3+t/xlw3R9A==
 
 undici-types@~5.26.4:
   version "5.26.5"
diff --git a/e2e/smoke-tests/package.json b/e2e/smoke-tests/package.json
index c957f018b5a..a434fb644a7 100644
--- a/e2e/smoke-tests/package.json
+++ b/e2e/smoke-tests/package.json
@@ -29,7 +29,7 @@
     "jest": "29.7.0",
     "jest-environment-jsdom": "29.7.0",
     "ts-node": "10.9.2",
-    "typescript": "5.5.4",
+    "typescript": "5.9.2",
     "webpack": "5.98.0",
     "webpack-cli": "5.1.4",
     "webpack-dev-server": "5.2.0"
diff --git a/e2e/smoke-tests/yarn.lock b/e2e/smoke-tests/yarn.lock
index b9a6d8e4451..81882cbaeb6 100644
--- a/e2e/smoke-tests/yarn.lock
+++ b/e2e/smoke-tests/yarn.lock
@@ -5422,10 +5422,10 @@ type-is@~1.6.18:
     media-typer "0.3.0"
     mime-types "~2.1.24"
 
-typescript@5.5.4:
-  version "5.5.4"
-  resolved "https://registry.npmjs.org/typescript/-/typescript-5.5.4.tgz"
-  integrity sha512-Mtq29sKDAEYP7aljRgtPOpTvOfbwRWlS6dPRzwjdE+C0R4brX/GUyhHSecbHMFLNBLcJIPt9nl9yG5TZ1weH+Q==
+typescript@5.9.2:
+  version "5.9.2"
+  resolved "https://registry.npmjs.org/typescript/-/typescript-5.9.2.tgz#d93450cddec5154a2d5cabe3b8102b83316fb2a6"
+  integrity sha512-CWBzXQrc/qOkhidw1OzBTQuYRbfyxDXJMVJ1XNwUHGROVmuaeiEm3OslpZ1RV96d7SKKjZKrSJu3+t/xlw3R9A==
 
 undici-types@~6.19.8:
   version "6.19.8"
diff --git a/integration/compat-interop/package.json b/integration/compat-interop/package.json
index 898feed3504..c78b7dbbdef 100644
--- a/integration/compat-interop/package.json
+++ b/integration/compat-interop/package.json
@@ -24,7 +24,7 @@
     "@firebase/remote-config-compat": "0.2.19"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "engines": {
     "node": ">=20.0.0"
diff --git a/integration/compat-typings/package.json b/integration/compat-typings/package.json
index 6ad4d2e1298..e327ab329d4 100644
--- a/integration/compat-typings/package.json
+++ b/integration/compat-typings/package.json
@@ -10,7 +10,7 @@
     "firebase": "*"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "engines": {
     "node": ">=20.0.0"
diff --git a/integration/firestore/package.json b/integration/firestore/package.json
index e3c67784ed6..fdc5e8aa2d5 100644
--- a/integration/firestore/package.json
+++ b/integration/firestore/package.json
@@ -22,7 +22,7 @@
     "gulp": "4.0.2",
     "gulp-filter": "7.0.0",
     "gulp-replace": "1.1.4",
-    "typescript": "5.5.4",
+    "typescript": "5.9.2",
     "webpack-stream": "7.0.0"
   },
   "engines": {
diff --git a/package.json b/package.json
index 39455ef1161..45121687db1 100644
--- a/package.json
+++ b/package.json
@@ -155,7 +155,7 @@
     "tsec": "0.2.8",
     "tslint": "6.1.3",
     "typedoc": "0.16.11",
-    "typescript": "5.5.4",
+    "typescript": "5.9.2",
     "watch": "1.0.2",
     "webpack": "5.98.0",
     "yargs": "17.7.2"
diff --git a/packages/ai/package.json b/packages/ai/package.json
index 8000ec4e99d..7fbf2db1450 100644
--- a/packages/ai/package.json
+++ b/packages/ai/package.json
@@ -62,7 +62,7 @@
     "rollup": "2.79.2",
     "rollup-plugin-replace": "2.2.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "repository": {
     "directory": "packages/ai",
diff --git a/packages/analytics-compat/package.json b/packages/analytics-compat/package.json
index a4648a4ef32..55206cdbe88 100644
--- a/packages/analytics-compat/package.json
+++ b/packages/analytics-compat/package.json
@@ -26,7 +26,7 @@
     "rollup": "2.79.2",
     "@rollup/plugin-json": "6.1.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "repository": {
     "directory": "packages/analytics-compat",
diff --git a/packages/analytics-interop-types/package.json b/packages/analytics-interop-types/package.json
index d96eeff69d5..093d199695c 100644
--- a/packages/analytics-interop-types/package.json
+++ b/packages/analytics-interop-types/package.json
@@ -20,6 +20,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   }
 }
diff --git a/packages/analytics-types/package.json b/packages/analytics-types/package.json
index 2798c23b3fe..4e6fa4a96c3 100644
--- a/packages/analytics-types/package.json
+++ b/packages/analytics-types/package.json
@@ -20,6 +20,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   }
 }
diff --git a/packages/analytics/package.json b/packages/analytics/package.json
index afc5c620bb8..28abea0f567 100644
--- a/packages/analytics/package.json
+++ b/packages/analytics/package.json
@@ -54,7 +54,7 @@
     "@rollup/plugin-json": "6.1.0",
     "@rollup/plugin-node-resolve": "16.0.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "repository": {
     "directory": "packages/analytics",
diff --git a/packages/app-check-compat/package.json b/packages/app-check-compat/package.json
index 4272d7abae3..2b3e7efc233 100644
--- a/packages/app-check-compat/package.json
+++ b/packages/app-check-compat/package.json
@@ -49,7 +49,7 @@
     "@rollup/plugin-json": "6.1.0",
     "@rollup/plugin-node-resolve": "16.0.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "repository": {
     "directory": "packages/app-check",
diff --git a/packages/app-check-interop-types/package.json b/packages/app-check-interop-types/package.json
index c7e45614eea..7c5dc438578 100644
--- a/packages/app-check-interop-types/package.json
+++ b/packages/app-check-interop-types/package.json
@@ -20,6 +20,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   }
 }
diff --git a/packages/app-check-types/package.json b/packages/app-check-types/package.json
index 92439788566..82583ea71a8 100644
--- a/packages/app-check-types/package.json
+++ b/packages/app-check-types/package.json
@@ -20,6 +20,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   }
 }
diff --git a/packages/app-check/package.json b/packages/app-check/package.json
index 349621cbc23..b941a653c3b 100644
--- a/packages/app-check/package.json
+++ b/packages/app-check/package.json
@@ -50,7 +50,7 @@
     "@rollup/plugin-json": "6.1.0",
     "@rollup/plugin-node-resolve": "16.0.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "repository": {
     "directory": "packages/app-check",
diff --git a/packages/app-compat/package.json b/packages/app-compat/package.json
index 95abb2209ae..c42f40f20fe 100644
--- a/packages/app-compat/package.json
+++ b/packages/app-compat/package.json
@@ -48,7 +48,7 @@
     "@rollup/plugin-json": "6.1.0",
     "rollup-plugin-replace": "2.2.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "repository": {
     "directory": "packages/app-compat",
diff --git a/packages/app-types/package.json b/packages/app-types/package.json
index 4c49efb3512..f2936ed3b80 100644
--- a/packages/app-types/package.json
+++ b/packages/app-types/package.json
@@ -24,6 +24,6 @@
     "@firebase/logger": "0.2.6"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   }
 }
diff --git a/packages/app/package.json b/packages/app/package.json
index 783f4360fbe..a91f2084573 100644
--- a/packages/app/package.json
+++ b/packages/app/package.json
@@ -52,7 +52,7 @@
     "rollup-plugin-replace": "2.2.0",
     "rollup-plugin-typescript2": "0.36.0",
     "rollup-plugin-dts": "5.3.1",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "repository": {
     "directory": "packages/app",
diff --git a/packages/auth-compat/package.json b/packages/auth-compat/package.json
index 14e0aa922d9..5311e6e5286 100644
--- a/packages/auth-compat/package.json
+++ b/packages/auth-compat/package.json
@@ -63,7 +63,7 @@
     "rollup-plugin-replace": "2.2.0",
     "rollup-plugin-typescript2": "0.36.0",
     "selenium-webdriver": "4.30.0",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "repository": {
     "directory": "packages/auth-compat",
diff --git a/packages/auth-interop-types/package.json b/packages/auth-interop-types/package.json
index ecea25d0c00..caa3c6b427e 100644
--- a/packages/auth-interop-types/package.json
+++ b/packages/auth-interop-types/package.json
@@ -20,6 +20,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   }
 }
diff --git a/packages/auth-types/package.json b/packages/auth-types/package.json
index 66dced1d568..2f8d2390c1a 100644
--- a/packages/auth-types/package.json
+++ b/packages/auth-types/package.json
@@ -24,6 +24,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   }
 }
diff --git a/packages/auth/package.json b/packages/auth/package.json
index 1240ba038a2..59ec68c41d8 100644
--- a/packages/auth/package.json
+++ b/packages/auth/package.json
@@ -142,7 +142,7 @@
     "rollup-plugin-typescript2": "0.36.0",
     "selenium-webdriver": "4.30.0",
     "totp-generator": "0.0.14",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "repository": {
     "directory": "packages/auth",
diff --git a/packages/component/package.json b/packages/component/package.json
index 2b475f12177..fae84da2ddd 100644
--- a/packages/component/package.json
+++ b/packages/component/package.json
@@ -38,7 +38,7 @@
   "devDependencies": {
     "rollup": "2.79.2",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "repository": {
     "directory": "packages/component",
diff --git a/packages/data-connect/package.json b/packages/data-connect/package.json
index 974449423f4..06c2bf77760 100644
--- a/packages/data-connect/package.json
+++ b/packages/data-connect/package.json
@@ -58,7 +58,7 @@
     "@firebase/app": "0.14.1",
     "rollup": "2.79.2",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "repository": {
     "directory": "packages/data-connect",
diff --git a/packages/database-compat/package.json b/packages/database-compat/package.json
index b8f8831f4a1..a98c8090953 100644
--- a/packages/database-compat/package.json
+++ b/packages/database-compat/package.json
@@ -58,7 +58,7 @@
   },
   "devDependencies": {
     "@firebase/app-compat": "0.5.1",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "repository": {
     "directory": "packages/database-compat",
diff --git a/packages/database-types/package.json b/packages/database-types/package.json
index b63337a0612..2632be27f8d 100644
--- a/packages/database-types/package.json
+++ b/packages/database-types/package.json
@@ -24,6 +24,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   }
 }
diff --git a/packages/database/package.json b/packages/database/package.json
index 62321919b96..d51f4057677 100644
--- a/packages/database/package.json
+++ b/packages/database/package.json
@@ -60,7 +60,7 @@
     "@firebase/app": "0.14.1",
     "rollup": "2.79.2",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "repository": {
     "directory": "packages/database",
diff --git a/packages/firebase/package.json b/packages/firebase/package.json
index 8fefaf727da..e6d510ad63d 100644
--- a/packages/firebase/package.json
+++ b/packages/firebase/package.json
@@ -439,7 +439,7 @@
     "gulp": "4.0.2",
     "gulp-sourcemaps": "3.0.0",
     "gulp-replace": "1.1.4",
-    "typescript": "5.5.4",
+    "typescript": "5.9.2",
     "rollup-plugin-license": "3.5.3"
   },
   "components": [
diff --git a/packages/firestore-compat/package.json b/packages/firestore-compat/package.json
index 66c3a91b752..8f75b4dbae9 100644
--- a/packages/firestore-compat/package.json
+++ b/packages/firestore-compat/package.json
@@ -61,7 +61,7 @@
     "rollup-plugin-typescript2": "0.36.0",
     "@rollup/plugin-node-resolve": "16.0.0",
     "ts-node": "10.9.2",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "license": "Apache-2.0",
   "typings": "dist/src/index.d.ts",
diff --git a/packages/firestore-types/package.json b/packages/firestore-types/package.json
index d1cf512ec53..eb48f65c791 100644
--- a/packages/firestore-types/package.json
+++ b/packages/firestore-types/package.json
@@ -24,6 +24,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   }
 }
diff --git a/packages/firestore/package.json b/packages/firestore/package.json
index 8d95f3bbaf9..f6bc8a4b241 100644
--- a/packages/firestore/package.json
+++ b/packages/firestore/package.json
@@ -130,7 +130,7 @@
     "rollup-plugin-typescript2": "0.36.0",
     "rollup-plugin-dts": "5.3.1",
     "ts-node": "10.9.2",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "repository": {
     "directory": "packages/firestore",
diff --git a/packages/functions-compat/package.json b/packages/functions-compat/package.json
index c4799b9b289..4ab0a817c2b 100644
--- a/packages/functions-compat/package.json
+++ b/packages/functions-compat/package.json
@@ -33,7 +33,7 @@
     "rollup": "2.79.2",
     "@rollup/plugin-json": "6.1.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "repository": {
     "directory": "packages/functions-compat",
diff --git a/packages/functions-types/package.json b/packages/functions-types/package.json
index f06c4489e6a..6a225dc42e8 100644
--- a/packages/functions-types/package.json
+++ b/packages/functions-types/package.json
@@ -20,6 +20,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   }
 }
diff --git a/packages/functions/package.json b/packages/functions/package.json
index 2bb085c4f5d..14ddbd3c394 100644
--- a/packages/functions/package.json
+++ b/packages/functions/package.json
@@ -53,7 +53,7 @@
     "rollup": "2.79.2",
     "@rollup/plugin-json": "6.1.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "repository": {
     "directory": "packages/functions",
diff --git a/packages/installations-compat/package.json b/packages/installations-compat/package.json
index 0e25a2ddb65..b7bab5acacc 100644
--- a/packages/installations-compat/package.json
+++ b/packages/installations-compat/package.json
@@ -51,7 +51,7 @@
     "@rollup/plugin-node-resolve": "16.0.0",
     "rollup-plugin-typescript2": "0.36.0",
     "rollup-plugin-uglify": "6.0.4",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "peerDependencies": {
     "@firebase/app-compat": "0.x"
diff --git a/packages/installations-types/package.json b/packages/installations-types/package.json
index fafe3b63102..7807c4e32ec 100644
--- a/packages/installations-types/package.json
+++ b/packages/installations-types/package.json
@@ -23,6 +23,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   }
 }
diff --git a/packages/installations/package.json b/packages/installations/package.json
index d093dc93469..68367773f7d 100644
--- a/packages/installations/package.json
+++ b/packages/installations/package.json
@@ -56,7 +56,7 @@
     "@rollup/plugin-node-resolve": "16.0.0",
     "rollup-plugin-typescript2": "0.36.0",
     "rollup-plugin-uglify": "6.0.4",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "peerDependencies": {
     "@firebase/app": "0.x"
diff --git a/packages/logger/package.json b/packages/logger/package.json
index f44fa21d524..9ffab07a9ee 100644
--- a/packages/logger/package.json
+++ b/packages/logger/package.json
@@ -37,7 +37,7 @@
   "devDependencies": {
     "rollup": "2.79.2",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "repository": {
     "directory": "packages/logger",
diff --git a/packages/messaging-compat/package.json b/packages/messaging-compat/package.json
index 00590078b53..82393a155a0 100644
--- a/packages/messaging-compat/package.json
+++ b/packages/messaging-compat/package.json
@@ -48,7 +48,7 @@
     "@rollup/plugin-json": "6.1.0",
     "rollup-plugin-typescript2": "0.36.0",
     "ts-essentials": "9.4.2",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "repository": {
     "directory": "packages/messaging",
diff --git a/packages/messaging-interop-types/package.json b/packages/messaging-interop-types/package.json
index 9df85275ae1..a8963b4583a 100644
--- a/packages/messaging-interop-types/package.json
+++ b/packages/messaging-interop-types/package.json
@@ -20,6 +20,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   }
 }
diff --git a/packages/messaging/package.json b/packages/messaging/package.json
index 99e2bebd20d..231af6020f9 100644
--- a/packages/messaging/package.json
+++ b/packages/messaging/package.json
@@ -65,7 +65,7 @@
     "rollup-plugin-typescript2": "0.36.0",
     "@rollup/plugin-json": "6.1.0",
     "ts-essentials": "10.0.4",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "repository": {
     "directory": "packages/messaging",
diff --git a/packages/performance-compat/package.json b/packages/performance-compat/package.json
index 3afbec6ded6..3c2b5a16e24 100644
--- a/packages/performance-compat/package.json
+++ b/packages/performance-compat/package.json
@@ -50,7 +50,7 @@
     "@rollup/plugin-json": "6.1.0",
     "rollup-plugin-replace": "2.2.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4",
+    "typescript": "5.9.2",
     "@firebase/app-compat": "0.5.1"
   },
   "repository": {
diff --git a/packages/performance-types/package.json b/packages/performance-types/package.json
index 0d90a465501..2d3e5e24fe9 100644
--- a/packages/performance-types/package.json
+++ b/packages/performance-types/package.json
@@ -12,7 +12,7 @@
     "index.d.ts"
   ],
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "repository": {
     "directory": "packages/performance-types",
diff --git a/packages/performance/package.json b/packages/performance/package.json
index 20a15732db1..50ce37db0ef 100644
--- a/packages/performance/package.json
+++ b/packages/performance/package.json
@@ -51,7 +51,7 @@
     "rollup": "2.79.2",
     "@rollup/plugin-json": "6.1.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "repository": {
     "directory": "packages/performance",
diff --git a/packages/remote-config-compat/package.json b/packages/remote-config-compat/package.json
index 835e1dffe78..b0deda3dcc0 100644
--- a/packages/remote-config-compat/package.json
+++ b/packages/remote-config-compat/package.json
@@ -49,7 +49,7 @@
     "@rollup/plugin-json": "6.1.0",
     "rollup-plugin-replace": "2.2.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4",
+    "typescript": "5.9.2",
     "@firebase/app-compat": "0.5.1"
   },
   "repository": {
diff --git a/packages/remote-config-types/package.json b/packages/remote-config-types/package.json
index 7de29a27043..d57dc3f8ab5 100644
--- a/packages/remote-config-types/package.json
+++ b/packages/remote-config-types/package.json
@@ -20,6 +20,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   }
 }
diff --git a/packages/remote-config/package.json b/packages/remote-config/package.json
index 89fd56baee0..c970298c5ff 100644
--- a/packages/remote-config/package.json
+++ b/packages/remote-config/package.json
@@ -52,7 +52,7 @@
     "rollup": "2.79.2",
     "rollup-plugin-dts": "5.3.1",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "repository": {
     "directory": "packages/remote-config",
diff --git a/packages/storage-compat/package.json b/packages/storage-compat/package.json
index 0cda2ee6e00..29a1f161610 100644
--- a/packages/storage-compat/package.json
+++ b/packages/storage-compat/package.json
@@ -49,7 +49,7 @@
     "rollup": "2.79.2",
     "@rollup/plugin-json": "6.1.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "files": [
     "dist"
diff --git a/packages/storage-types/package.json b/packages/storage-types/package.json
index 5addb80bc3b..b9f3ecd09cb 100644
--- a/packages/storage-types/package.json
+++ b/packages/storage-types/package.json
@@ -24,6 +24,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   }
 }
diff --git a/packages/storage/package.json b/packages/storage/package.json
index 2e71e120414..e394f32bbaa 100644
--- a/packages/storage/package.json
+++ b/packages/storage/package.json
@@ -60,7 +60,7 @@
     "@rollup/plugin-alias": "5.1.1",
     "@rollup/plugin-json": "6.1.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "repository": {
     "directory": "packages/storage",
diff --git a/packages/template-types/package.json b/packages/template-types/package.json
index 2704ffab6bd..c86ec7397c8 100644
--- a/packages/template-types/package.json
+++ b/packages/template-types/package.json
@@ -21,6 +21,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   }
 }
diff --git a/packages/template/package.json b/packages/template/package.json
index a61412f89e9..f079212999b 100644
--- a/packages/template/package.json
+++ b/packages/template/package.json
@@ -51,7 +51,7 @@
     "@firebase/app": "0.14.1",
     "rollup": "2.79.2",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "repository": {
     "directory": "packages/template",
diff --git a/packages/util/package.json b/packages/util/package.json
index 8c44efc4924..e12e88b7ef2 100644
--- a/packages/util/package.json
+++ b/packages/util/package.json
@@ -50,7 +50,7 @@
     "@rollup/plugin-replace": "6.0.2",
     "rollup": "2.79.2",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "repository": {
     "directory": "packages/util",
diff --git a/packages/webchannel-wrapper/package.json b/packages/webchannel-wrapper/package.json
index 0ce6504b387..8e0decbc269 100644
--- a/packages/webchannel-wrapper/package.json
+++ b/packages/webchannel-wrapper/package.json
@@ -37,7 +37,7 @@
     "rollup-plugin-copy": "3.5.0",
     "rollup-plugin-sourcemaps": "0.6.3",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "repository": {
     "directory": "packages/webchannel-wrapper",
diff --git a/repo-scripts/changelog-generator/package.json b/repo-scripts/changelog-generator/package.json
index 8b3acaade05..5cf4a594b78 100644
--- a/repo-scripts/changelog-generator/package.json
+++ b/repo-scripts/changelog-generator/package.json
@@ -23,7 +23,7 @@
   },
   "license": "Apache-2.0",
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.9.2"
   },
   "repository": {
     "directory": "repo-scripts/changelog-generator",
diff --git a/repo-scripts/size-analysis/package.json b/repo-scripts/size-analysis/package.json
index f3103efd235..cef379533c9 100644
--- a/repo-scripts/size-analysis/package.json
+++ b/repo-scripts/size-analysis/package.json
@@ -34,7 +34,7 @@
     "rollup": "2.79.2",
     "rollup-plugin-replace": "2.2.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4",
+    "typescript": "5.9.2",
     "webpack": "5.98.0",
     "webpack-virtual-modules": "0.6.2",
     "yargs": "17.7.2"
diff --git a/yarn.lock b/yarn.lock
index 540d7bc7171..72ff7fa815c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -15139,7 +15139,7 @@ string-argv@~0.3.1:
   resolved "https://registry.npmjs.org/string-argv/-/string-argv-0.3.2.tgz#2b6d0ef24b656274d957d54e0a4bbf6153dc02b6"
   integrity sha512-aqD2Q0144Z+/RqG52NeHEkZauTAUWJO8c6yTftGJKO3Tja5tUgIfmIl6kExvhtxSDP7fXB6DvzkfMpCd/F3G+Q==
 
-"string-width-cjs@npm:string-width@^4.2.0", "string-width@^1.0.2 || 2 || 3 || 4", string-width@^4.0.0, string-width@^4.1.0, string-width@^4.2.0, string-width@^4.2.2, string-width@^4.2.3:
+"string-width-cjs@npm:string-width@^4.2.0":
   version "4.2.3"
   resolved "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz#269c7117d27b05ad2e536830a8ec895ef9c6d010"
   integrity sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==
@@ -15157,6 +15157,15 @@ string-width@^1.0.1, string-width@^1.0.2:
     is-fullwidth-code-point "^1.0.0"
     strip-ansi "^3.0.0"
 
+"string-width@^1.0.2 || 2 || 3 || 4", string-width@^4.0.0, string-width@^4.1.0, string-width@^4.2.0, string-width@^4.2.2, string-width@^4.2.3:
+  version "4.2.3"
+  resolved "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz#269c7117d27b05ad2e536830a8ec895ef9c6d010"
+  integrity sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==
+  dependencies:
+    emoji-regex "^8.0.0"
+    is-fullwidth-code-point "^3.0.0"
+    strip-ansi "^6.0.1"
+
 string-width@^2.1.1:
   version "2.1.1"
   resolved "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz#ab93f27a8dc13d28cac815c462143a6d9012ae9e"
@@ -15220,7 +15229,7 @@ string_decoder@~1.1.1:
   dependencies:
     safe-buffer "~5.1.0"
 
-"strip-ansi-cjs@npm:strip-ansi@^6.0.1", strip-ansi@^6.0.0, strip-ansi@^6.0.1:
+"strip-ansi-cjs@npm:strip-ansi@^6.0.1":
   version "6.0.1"
   resolved "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz#9e26c63d30f53443e9489495b2105d37b67a85d9"
   integrity sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==
@@ -15241,6 +15250,13 @@ strip-ansi@^4.0.0:
   dependencies:
     ansi-regex "^3.0.0"
 
+strip-ansi@^6.0.0, strip-ansi@^6.0.1:
+  version "6.0.1"
+  resolved "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz#9e26c63d30f53443e9489495b2105d37b67a85d9"
+  integrity sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==
+  dependencies:
+    ansi-regex "^5.0.1"
+
 strip-ansi@^7.0.1:
   version "7.1.0"
   resolved "https://registry.npmjs.org/strip-ansi/-/strip-ansi-7.1.0.tgz#d5b6568ca689d8561370b0707685d22434faff45"
@@ -16066,10 +16082,10 @@ typescript@3.7.x:
   resolved "https://registry.npmjs.org/typescript/-/typescript-3.7.7.tgz#c931733e2ec10dda56b855b379cc488a72a81199"
   integrity sha512-MmQdgo/XenfZPvVLtKZOq9jQQvzaUAUpcKW8Z43x9B2fOm4S5g//tPtMweZUIP+SoBqrVPEIm+dJeQ9dfO0QdA==
 
-typescript@5.5.4:
-  version "5.5.4"
-  resolved "https://registry.npmjs.org/typescript/-/typescript-5.5.4.tgz#d9852d6c82bad2d2eda4fd74a5762a8f5909e9ba"
-  integrity sha512-Mtq29sKDAEYP7aljRgtPOpTvOfbwRWlS6dPRzwjdE+C0R4brX/GUyhHSecbHMFLNBLcJIPt9nl9yG5TZ1weH+Q==
+typescript@5.9.2:
+  version "5.9.2"
+  resolved "https://registry.npmjs.org/typescript/-/typescript-5.9.2.tgz#d93450cddec5154a2d5cabe3b8102b83316fb2a6"
+  integrity sha512-CWBzXQrc/qOkhidw1OzBTQuYRbfyxDXJMVJ1XNwUHGROVmuaeiEm3OslpZ1RV96d7SKKjZKrSJu3+t/xlw3R9A==
 
 typescript@~4.1.3:
   version "4.1.6"
@@ -16913,7 +16929,7 @@ workerpool@6.2.0:
   resolved "https://registry.npmjs.org/workerpool/-/workerpool-6.2.0.tgz#827d93c9ba23ee2019c3ffaff5c27fccea289e8b"
   integrity sha512-Rsk5qQHJ9eowMH28Jwhe8HEbmdYDX4lwoMWshiCXugjtHqMD9ZbiqSDLxcsfdqsETPzVUtX5s1Z5kStiIM6l4A==
 
-"wrap-ansi-cjs@npm:wrap-ansi@^7.0.0", wrap-ansi@^7.0.0:
+"wrap-ansi-cjs@npm:wrap-ansi@^7.0.0":
   version "7.0.0"
   resolved "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-7.0.0.tgz#67e145cff510a6a6984bdf1152911d69d2eb9e43"
   integrity sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==
@@ -16947,6 +16963,15 @@ wrap-ansi@^6.0.1, wrap-ansi@^6.2.0:
     string-width "^4.1.0"
     strip-ansi "^6.0.0"
 
+wrap-ansi@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-7.0.0.tgz#67e145cff510a6a6984bdf1152911d69d2eb9e43"
+  integrity sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==
+  dependencies:
+    ansi-styles "^4.0.0"
+    string-width "^4.1.0"
+    strip-ansi "^6.0.0"
+
 wrap-ansi@^8.1.0:
   version "8.1.0"
   resolved "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-8.1.0.tgz#56dc22368ee570face1b49819975d9b9a5ead214"