diff --git a/package.json b/package.json
index ecbf97d..18c3b81 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "prettier": "^3.3.3",
     "prettier-plugin-ember-template-tag": "^2.0.1",
     "release-plan": "^0.10.0",
-    "typescript": "^5.5.3"
+    "typescript": "^5.9.3"
   },
   "workspaces": [
     "ember-routable-component",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 1ff3eb2..c33bc6d 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -20,7 +20,7 @@ importers:
     devDependencies:
       '@glint/core':
         specifier: ^1.4.1-unstable.e8d1c9a
-        version: 1.5.0(typescript@5.5.3)
+        version: 1.5.0(typescript@5.9.3)
       '@glint/environment-ember-loose':
         specifier: ^1.4.1-unstable.e8d1c9a
         version: 1.5.0(@glimmer/component@1.1.2)(@glint/template@1.5.0)(ember-cli-htmlbars@6.3.0)(ember-modifier@4.2.0(ember-source@5.12.0(@glimmer/component@1.1.2)(@glint/template@1.5.0)(rsvp@4.8.5)(webpack@5.92.1)))
@@ -43,8 +43,8 @@ importers:
         specifier: ^0.10.0
         version: 0.10.0(encoding@0.1.13)
       typescript:
-        specifier: ^5.5.3
-        version: 5.5.3
+        specifier: ^5.9.3
+        version: 5.9.3
 
   ember-routable-component:
     dependencies:
@@ -78,7 +78,7 @@ importers:
         version: 1.1.2(@babel/core@7.26.0)
       '@glint/core':
         specifier: ^1.4.1-unstable.e8d1c9a
-        version: 1.4.1-unstable.ff9ea6c(typescript@5.5.3)
+        version: 1.4.1-unstable.ff9ea6c(typescript@5.9.3)
       '@glint/environment-ember-loose':
         specifier: ^1.4.1-unstable.e8d1c9a
         version: 1.4.1-unstable.ff9ea6c(@glimmer/component@1.1.2(@babel/core@7.26.0))(@glint/template@1.5.0)(ember-cli-htmlbars@6.3.0)(ember-modifier@4.2.0(@babel/core@7.26.0)(ember-source@5.12.0(@glimmer/component@1.1.2(@babel/core@7.26.0))(@glint/template@1.5.0)(rsvp@4.8.5)(webpack@5.92.1)))
@@ -96,10 +96,10 @@ importers:
         version: 3.0.8
       '@typescript-eslint/eslint-plugin':
         specifier: ^7.16.0
-        version: 7.16.0(@typescript-eslint/parser@7.16.0(eslint@8.57.0)(typescript@5.5.3))(eslint@8.57.0)(typescript@5.5.3)
+        version: 7.16.0(@typescript-eslint/parser@7.16.0(eslint@8.57.0)(typescript@5.9.3))(eslint@8.57.0)(typescript@5.9.3)
       '@typescript-eslint/parser':
         specifier: ^7.16.0
-        version: 7.16.0(eslint@8.57.0)(typescript@5.5.3)
+        version: 7.16.0(eslint@8.57.0)(typescript@5.9.3)
       babel-plugin-ember-template-compilation:
         specifier: ^2.2.1
         version: 2.2.5
@@ -120,7 +120,7 @@ importers:
         version: 9.1.0(eslint@8.57.0)
       eslint-plugin-ember:
         specifier: ^12.3.1
-        version: 12.3.1(@babel/core@7.26.0)(@typescript-eslint/parser@7.16.0(eslint@8.57.0)(typescript@5.5.3))(eslint@8.57.0)
+        version: 12.3.1(@babel/core@7.26.0)(@typescript-eslint/parser@7.16.0(eslint@8.57.0)(typescript@5.9.3))(eslint@8.57.0)
       eslint-plugin-n:
         specifier: ^17.15.1
         version: 17.15.1(eslint@8.57.0)
@@ -141,7 +141,7 @@ importers:
         version: 3.5.0
       typescript:
         specifier: '*'
-        version: 5.5.3
+        version: 5.9.3
 
   test-app:
     dependencies:
@@ -175,7 +175,7 @@ importers:
         version: 1.1.2
       '@glint/core':
         specifier: ^1.4.1-unstable.e8d1c9a
-        version: 1.4.1-unstable.ff9ea6c(typescript@5.5.3)
+        version: 1.4.1-unstable.ff9ea6c(typescript@5.9.3)
       '@glint/environment-ember-loose':
         specifier: ^1.4.1-unstable.e8d1c9a
         version: 1.4.1-unstable.ff9ea6c(@glimmer/component@1.1.2(@babel/core@7.26.0))(@glint/template@1.5.0)(ember-cli-htmlbars@6.3.0)(ember-modifier@4.2.0(@babel/core@7.26.0)(ember-source@5.12.0(@glimmer/component@1.1.2(@babel/core@7.26.0))(@glint/template@1.5.0)(rsvp@4.8.5)(webpack@5.92.1)))
@@ -196,10 +196,10 @@ importers:
         version: 4.0.9
       '@typescript-eslint/eslint-plugin':
         specifier: ^7.16.0
-        version: 7.16.0(@typescript-eslint/parser@7.16.0(eslint@8.57.0)(typescript@5.5.3))(eslint@8.57.0)(typescript@5.5.3)
+        version: 7.16.0(@typescript-eslint/parser@7.16.0(eslint@8.57.0)(typescript@5.9.3))(eslint@8.57.0)(typescript@5.9.3)
       '@typescript-eslint/parser':
         specifier: ^7.16.0
-        version: 7.16.0(eslint@8.57.0)(typescript@5.5.3)
+        version: 7.16.0(eslint@8.57.0)(typescript@5.9.3)
       broccoli-asset-rev:
         specifier: ^3.0.0
         version: 3.0.0
@@ -280,7 +280,7 @@ importers:
         version: 9.1.0(eslint@8.57.0)
       eslint-plugin-ember:
         specifier: ^12.3.1
-        version: 12.3.1(@babel/core@7.26.0)(@typescript-eslint/parser@7.16.0(eslint@8.57.0)(typescript@5.5.3))(eslint@8.57.0)
+        version: 12.3.1(@babel/core@7.26.0)(@typescript-eslint/parser@7.16.0(eslint@8.57.0)(typescript@5.9.3))(eslint@8.57.0)
       eslint-plugin-n:
         specifier: ^17.15.1
         version: 17.15.1(eslint@8.57.0)
@@ -310,19 +310,19 @@ importers:
         version: 0.10.0(encoding@0.1.13)
       stylelint:
         specifier: ^16.7.0
-        version: 16.7.0(typescript@5.5.3)
+        version: 16.7.0(typescript@5.9.3)
       stylelint-config-standard:
         specifier: ^36.0.0
-        version: 36.0.1(stylelint@16.7.0(typescript@5.5.3))
+        version: 36.0.1(stylelint@16.7.0(typescript@5.9.3))
       stylelint-prettier:
         specifier: ^5.0.2
-        version: 5.0.2(prettier@3.3.3)(stylelint@16.7.0(typescript@5.5.3))
+        version: 5.0.2(prettier@3.3.3)(stylelint@16.7.0(typescript@5.9.3))
       tracked-built-ins:
         specifier: ^3.3.0
         version: 3.3.0
       typescript:
-        specifier: ^5.4.2
-        version: 5.5.3
+        specifier: ^5.9.3
+        version: 5.9.3
       webpack:
         specifier: ^5.91.0
         version: 5.92.1
@@ -6975,8 +6975,8 @@ packages:
   typescript-memoize@1.1.1:
     resolution: {integrity: sha512-GQ90TcKpIH4XxYTI2F98yEQYZgjNMOGPpOgdjIBhaLaWji5HPWlRnZ4AeA1hfBxtY7bCGDJsqDDHk/KaHOl5bA==}
 
-  typescript@5.5.3:
-    resolution: {integrity: sha512-/hreyEujaB0w76zKo6717l3L0o/qEUtRgdvUBvlkhoWeOVMjMuHNHk0BRBzikzuGDqNmPQbg5ifMEqsHLiIUcQ==}
+  typescript@5.9.3:
+    resolution: {integrity: sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==}
     engines: {node: '>=14.17'}
     hasBin: true
 
@@ -8749,10 +8749,10 @@ snapshots:
       '@glimmer/interfaces': 0.92.3
       '@glimmer/util': 0.92.3
 
-  '@glint/core@1.4.1-unstable.ff9ea6c(typescript@5.5.3)':
+  '@glint/core@1.4.1-unstable.ff9ea6c(typescript@5.9.3)':
     dependencies:
       '@glimmer/syntax': 0.84.3
-      '@volar/kit': 2.3.4(typescript@5.5.3)
+      '@volar/kit': 2.3.4(typescript@5.9.3)
       '@volar/language-core': 2.3.4
       '@volar/language-server': 2.3.4
       '@volar/language-service': 2.3.4
@@ -8763,7 +8763,7 @@ snapshots:
       escape-string-regexp: 4.0.0
       semver: 7.6.2
       silent-error: 1.1.1
-      typescript: 5.5.3
+      typescript: 5.9.3
       uuid: 8.3.2
       volar-service-typescript: 0.0.51(@volar/language-service@2.3.4)
       vscode-languageserver-textdocument: 1.0.11
@@ -8772,13 +8772,13 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
-  '@glint/core@1.5.0(typescript@5.5.3)':
+  '@glint/core@1.5.0(typescript@5.9.3)':
     dependencies:
       '@glimmer/syntax': 0.84.3
       escape-string-regexp: 4.0.0
       semver: 7.6.2
       silent-error: 1.1.1
-      typescript: 5.5.3
+      typescript: 5.9.3
       uuid: 8.3.2
       vscode-languageserver: 8.1.0
       vscode-languageserver-textdocument: 1.0.11
@@ -9282,34 +9282,34 @@ snapshots:
 
   '@types/symlink-or-copy@1.2.2': {}
 
-  '@typescript-eslint/eslint-plugin@7.16.0(@typescript-eslint/parser@7.16.0(eslint@8.57.0)(typescript@5.5.3))(eslint@8.57.0)(typescript@5.5.3)':
+  '@typescript-eslint/eslint-plugin@7.16.0(@typescript-eslint/parser@7.16.0(eslint@8.57.0)(typescript@5.9.3))(eslint@8.57.0)(typescript@5.9.3)':
     dependencies:
       '@eslint-community/regexpp': 4.11.0
-      '@typescript-eslint/parser': 7.16.0(eslint@8.57.0)(typescript@5.5.3)
+      '@typescript-eslint/parser': 7.16.0(eslint@8.57.0)(typescript@5.9.3)
       '@typescript-eslint/scope-manager': 7.16.0
-      '@typescript-eslint/type-utils': 7.16.0(eslint@8.57.0)(typescript@5.5.3)
-      '@typescript-eslint/utils': 7.16.0(eslint@8.57.0)(typescript@5.5.3)
+      '@typescript-eslint/type-utils': 7.16.0(eslint@8.57.0)(typescript@5.9.3)
+      '@typescript-eslint/utils': 7.16.0(eslint@8.57.0)(typescript@5.9.3)
       '@typescript-eslint/visitor-keys': 7.16.0
       eslint: 8.57.0
       graphemer: 1.4.0
       ignore: 5.3.1
       natural-compare: 1.4.0
-      ts-api-utils: 1.3.0(typescript@5.5.3)
+      ts-api-utils: 1.3.0(typescript@5.9.3)
     optionalDependencies:
-      typescript: 5.5.3
+      typescript: 5.9.3
     transitivePeerDependencies:
       - supports-color
 
-  '@typescript-eslint/parser@7.16.0(eslint@8.57.0)(typescript@5.5.3)':
+  '@typescript-eslint/parser@7.16.0(eslint@8.57.0)(typescript@5.9.3)':
     dependencies:
       '@typescript-eslint/scope-manager': 7.16.0
       '@typescript-eslint/types': 7.16.0
-      '@typescript-eslint/typescript-estree': 7.16.0(typescript@5.5.3)
+      '@typescript-eslint/typescript-estree': 7.16.0(typescript@5.9.3)
       '@typescript-eslint/visitor-keys': 7.16.0
       debug: 4.3.5
       eslint: 8.57.0
     optionalDependencies:
-      typescript: 5.5.3
+      typescript: 5.9.3
     transitivePeerDependencies:
       - supports-color
 
@@ -9318,21 +9318,21 @@ snapshots:
       '@typescript-eslint/types': 7.16.0
       '@typescript-eslint/visitor-keys': 7.16.0
 
-  '@typescript-eslint/type-utils@7.16.0(eslint@8.57.0)(typescript@5.5.3)':
+  '@typescript-eslint/type-utils@7.16.0(eslint@8.57.0)(typescript@5.9.3)':
     dependencies:
-      '@typescript-eslint/typescript-estree': 7.16.0(typescript@5.5.3)
-      '@typescript-eslint/utils': 7.16.0(eslint@8.57.0)(typescript@5.5.3)
+      '@typescript-eslint/typescript-estree': 7.16.0(typescript@5.9.3)
+      '@typescript-eslint/utils': 7.16.0(eslint@8.57.0)(typescript@5.9.3)
       debug: 4.3.5
       eslint: 8.57.0
-      ts-api-utils: 1.3.0(typescript@5.5.3)
+      ts-api-utils: 1.3.0(typescript@5.9.3)
     optionalDependencies:
-      typescript: 5.5.3
+      typescript: 5.9.3
     transitivePeerDependencies:
       - supports-color
 
   '@typescript-eslint/types@7.16.0': {}
 
-  '@typescript-eslint/typescript-estree@7.16.0(typescript@5.5.3)':
+  '@typescript-eslint/typescript-estree@7.16.0(typescript@5.9.3)':
     dependencies:
       '@typescript-eslint/types': 7.16.0
       '@typescript-eslint/visitor-keys': 7.16.0
@@ -9341,18 +9341,18 @@ snapshots:
       is-glob: 4.0.3
       minimatch: 9.0.5
       semver: 7.6.3
-      ts-api-utils: 1.3.0(typescript@5.5.3)
+      ts-api-utils: 1.3.0(typescript@5.9.3)
     optionalDependencies:
-      typescript: 5.5.3
+      typescript: 5.9.3
     transitivePeerDependencies:
       - supports-color
 
-  '@typescript-eslint/utils@7.16.0(eslint@8.57.0)(typescript@5.5.3)':
+  '@typescript-eslint/utils@7.16.0(eslint@8.57.0)(typescript@5.9.3)':
     dependencies:
       '@eslint-community/eslint-utils': 4.4.0(eslint@8.57.0)
       '@typescript-eslint/scope-manager': 7.16.0
       '@typescript-eslint/types': 7.16.0
-      '@typescript-eslint/typescript-estree': 7.16.0(typescript@5.5.3)
+      '@typescript-eslint/typescript-estree': 7.16.0(typescript@5.9.3)
       eslint: 8.57.0
     transitivePeerDependencies:
       - supports-color
@@ -9365,12 +9365,12 @@ snapshots:
 
   '@ungap/structured-clone@1.2.0': {}
 
-  '@volar/kit@2.3.4(typescript@5.5.3)':
+  '@volar/kit@2.3.4(typescript@5.9.3)':
     dependencies:
       '@volar/language-service': 2.3.4
       '@volar/typescript': 2.3.4
       typesafe-path: 0.2.2
-      typescript: 5.5.3
+      typescript: 5.9.3
       vscode-languageserver-textdocument: 1.0.11
       vscode-uri: 3.0.8
 
@@ -10748,14 +10748,14 @@ snapshots:
       object-assign: 4.1.1
       vary: 1.1.2
 
-  cosmiconfig@9.0.0(typescript@5.5.3):
+  cosmiconfig@9.0.0(typescript@5.9.3):
     dependencies:
       env-paths: 2.2.1
       import-fresh: 3.3.0
       js-yaml: 4.1.0
       parse-json: 5.2.0
     optionalDependencies:
-      typescript: 5.5.3
+      typescript: 5.9.3
 
   create-release-plan-setup@3.0.0:
     dependencies:
@@ -11491,7 +11491,7 @@ snapshots:
       - '@babel/core'
       - supports-color
 
-  ember-eslint-parser@0.4.3(@babel/core@7.26.0)(@typescript-eslint/parser@7.16.0(eslint@8.57.0)(typescript@5.5.3))(eslint@8.57.0):
+  ember-eslint-parser@0.4.3(@babel/core@7.26.0)(@typescript-eslint/parser@7.16.0(eslint@8.57.0)(typescript@5.9.3))(eslint@8.57.0):
     dependencies:
       '@babel/core': 7.26.0
       '@babel/eslint-parser': 7.23.10(@babel/core@7.26.0)(eslint@8.57.0)
@@ -11500,7 +11500,7 @@ snapshots:
       eslint-scope: 7.2.2
       html-tags: 3.3.1
     optionalDependencies:
-      '@typescript-eslint/parser': 7.16.0(eslint@8.57.0)(typescript@5.5.3)
+      '@typescript-eslint/parser': 7.16.0(eslint@8.57.0)(typescript@5.9.3)
     transitivePeerDependencies:
       - eslint
 
@@ -11896,11 +11896,11 @@ snapshots:
 
   eslint-formatter-kakoune@1.0.0: {}
 
-  eslint-plugin-ember@12.3.1(@babel/core@7.26.0)(@typescript-eslint/parser@7.16.0(eslint@8.57.0)(typescript@5.5.3))(eslint@8.57.0):
+  eslint-plugin-ember@12.3.1(@babel/core@7.26.0)(@typescript-eslint/parser@7.16.0(eslint@8.57.0)(typescript@5.9.3))(eslint@8.57.0):
     dependencies:
       '@ember-data/rfc395-data': 0.0.4
       css-tree: 2.3.1
-      ember-eslint-parser: 0.4.3(@babel/core@7.26.0)(@typescript-eslint/parser@7.16.0(eslint@8.57.0)(typescript@5.5.3))(eslint@8.57.0)
+      ember-eslint-parser: 0.4.3(@babel/core@7.26.0)(@typescript-eslint/parser@7.16.0(eslint@8.57.0)(typescript@5.9.3))(eslint@8.57.0)
       ember-rfc176-data: 0.3.18
       eslint: 8.57.0
       eslint-utils: 3.0.0(eslint@8.57.0)
@@ -11910,7 +11910,7 @@ snapshots:
       requireindex: 1.2.0
       snake-case: 3.0.4
     optionalDependencies:
-      '@typescript-eslint/parser': 7.16.0(eslint@8.57.0)(typescript@5.5.3)
+      '@typescript-eslint/parser': 7.16.0(eslint@8.57.0)(typescript@5.9.3)
     transitivePeerDependencies:
       - '@babel/core'
 
@@ -15333,22 +15333,22 @@ snapshots:
 
   styled_string@0.0.1: {}
 
-  stylelint-config-recommended@14.0.1(stylelint@16.7.0(typescript@5.5.3)):
+  stylelint-config-recommended@14.0.1(stylelint@16.7.0(typescript@5.9.3)):
     dependencies:
-      stylelint: 16.7.0(typescript@5.5.3)
+      stylelint: 16.7.0(typescript@5.9.3)
 
-  stylelint-config-standard@36.0.1(stylelint@16.7.0(typescript@5.5.3)):
+  stylelint-config-standard@36.0.1(stylelint@16.7.0(typescript@5.9.3)):
     dependencies:
-      stylelint: 16.7.0(typescript@5.5.3)
-      stylelint-config-recommended: 14.0.1(stylelint@16.7.0(typescript@5.5.3))
+      stylelint: 16.7.0(typescript@5.9.3)
+      stylelint-config-recommended: 14.0.1(stylelint@16.7.0(typescript@5.9.3))
 
-  stylelint-prettier@5.0.2(prettier@3.3.3)(stylelint@16.7.0(typescript@5.5.3)):
+  stylelint-prettier@5.0.2(prettier@3.3.3)(stylelint@16.7.0(typescript@5.9.3)):
     dependencies:
       prettier: 3.3.3
       prettier-linter-helpers: 1.0.0
-      stylelint: 16.7.0(typescript@5.5.3)
+      stylelint: 16.7.0(typescript@5.9.3)
 
-  stylelint@16.7.0(typescript@5.5.3):
+  stylelint@16.7.0(typescript@5.9.3):
     dependencies:
       '@csstools/css-parser-algorithms': 2.7.1(@csstools/css-tokenizer@2.4.1)
       '@csstools/css-tokenizer': 2.4.1
@@ -15357,7 +15357,7 @@ snapshots:
       '@dual-bundle/import-meta-resolve': 4.1.0
       balanced-match: 2.0.0
       colord: 2.9.3
-      cosmiconfig: 9.0.0(typescript@5.5.3)
+      cosmiconfig: 9.0.0(typescript@5.9.3)
       css-functions-list: 3.2.2
       css-tree: 2.3.1
       debug: 4.3.5
@@ -15702,9 +15702,9 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
-  ts-api-utils@1.3.0(typescript@5.5.3):
+  ts-api-utils@1.3.0(typescript@5.9.3):
     dependencies:
-      typescript: 5.5.3
+      typescript: 5.9.3
 
   tslib@1.14.1: {}
 
@@ -15775,7 +15775,7 @@ snapshots:
 
   typescript-memoize@1.1.1: {}
 
-  typescript@5.5.3: {}
+  typescript@5.9.3: {}
 
   uc.micro@1.0.6: {}
 
diff --git a/test-app/package.json b/test-app/package.json
index 6fb7b0f..5724515 100644
--- a/test-app/package.json
+++ b/test-app/package.json
@@ -89,7 +89,7 @@
     "stylelint-config-standard": "^36.0.0",
     "stylelint-prettier": "^5.0.2",
     "tracked-built-ins": "^3.3.0",
-    "typescript": "^5.4.2",
+    "typescript": "^5.9.3",
     "webpack": "^5.91.0"
   },
   "engines": {