diff --git a/package.json b/package.json
index f7454d32..060286b9 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,7 @@
     "@rushstack/eslint-plugin": "^0.19.0",
     "@rushstack/eslint-plugin-packlets": "^0.8.1",
     "@rushstack/eslint-plugin-security": "^0.11.0",
-    "@types/eslint": "^8.44.7",
+    "@types/eslint": "^9.0.0",
     "eslint-config-prettier": "^10.0.0",
     "eslint-config-xo": "^0.49.0",
     "eslint-config-xo-react": "^0.28.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 2b808bef..c31f71fe 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -27,8 +27,8 @@ importers:
         specifier: ^0.11.0
         version: 0.11.0(eslint@8.57.1)(typescript@5.9.2)
       '@types/eslint':
-        specifier: ^8.44.7
-        version: 8.56.12
+        specifier: ^9.0.0
+        version: 9.6.1
       eslint-config-prettier:
         specifier: ^10.0.0
         version: 10.1.8(eslint@8.57.1)
@@ -58,7 +58,7 @@ importers:
         version: 5.1.0(eslint@8.57.1)
       eslint-plugin-prettier:
         specifier: ^5.1.3
-        version: 5.5.4(@types/eslint@8.56.12)(eslint-config-prettier@10.1.8(eslint@8.57.1))(eslint@8.57.1)(prettier@3.6.2)
+        version: 5.5.4(@types/eslint@9.6.1)(eslint-config-prettier@10.1.8(eslint@8.57.1))(eslint@8.57.1)(prettier@3.6.2)
       eslint-plugin-promise:
         specifier: ^7.0.0
         version: 7.2.1(eslint@8.57.1)
@@ -1076,6 +1076,9 @@ packages:
   '@types/eslint@8.56.12':
     resolution: {integrity: sha512-03ruubjWyOHlmljCVoxSuNDdmfZDzsrrz0P2LeJsOXr+ZwFQ+0yQIwNCwt/GYhV7Z31fgtXJTAEs+FYlEL851g==}
 
+  '@types/eslint@9.6.1':
+    resolution: {integrity: sha512-FXx2pKgId/WyYo2jXw63kk7/+TY7u7AziEJxJAnSFzHlqTAS3Ync6SvgYAN/k4/PQpnnVuzoMuVnByKK2qp0ag==}
+
   '@types/estree@1.0.7':
     resolution: {integrity: sha512-w28IoSUCJpidD/TGviZwwMJckNESJZXFu7NBZ5YJ4mEUnNraUn9Pm8HSZm/jDF1pDWYKspWE7oVphigUPRakIQ==}
 
@@ -5242,7 +5245,12 @@ snapshots:
 
   '@types/eslint@8.56.12':
     dependencies:
-      '@types/estree': 1.0.7
+      '@types/estree': 1.0.8
+      '@types/json-schema': 7.0.15
+
+  '@types/eslint@9.6.1':
+    dependencies:
+      '@types/estree': 1.0.8
       '@types/json-schema': 7.0.15
 
   '@types/estree@1.0.7': {}
@@ -6668,14 +6676,14 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
-  eslint-plugin-prettier@5.5.4(@types/eslint@8.56.12)(eslint-config-prettier@10.1.8(eslint@8.57.1))(eslint@8.57.1)(prettier@3.6.2):
+  eslint-plugin-prettier@5.5.4(@types/eslint@9.6.1)(eslint-config-prettier@10.1.8(eslint@8.57.1))(eslint@8.57.1)(prettier@3.6.2):
     dependencies:
       eslint: 8.57.1
       prettier: 3.6.2
       prettier-linter-helpers: 1.0.0
       synckit: 0.11.11
     optionalDependencies:
-      '@types/eslint': 8.56.12
+      '@types/eslint': 9.6.1
       eslint-config-prettier: 10.1.8(eslint@8.57.1)
 
   eslint-plugin-promise@7.2.1(eslint@8.57.1):