diff --git a/package.json b/package.json
index cd22d90a9..94714dd75 100644
--- a/package.json
+++ b/package.json
@@ -112,7 +112,7 @@
     "@stryker-mutator/core": "^8.6.0",
     "@stryker-mutator/jest-runner": "^8.6.0",
     "@stryker-mutator/typescript-checker": "^8.6.0",
-    "@stylistic/eslint-plugin": "^2.8.0",
+    "@stylistic/eslint-plugin": "^2.9.0",
     "@types/express": "^5.0.0",
     "@types/jest": "^29.5.13",
     "@types/jest-when": "^3.5.5",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index a03044288..c38b1e621 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -118,8 +118,8 @@ importers:
         specifier: ^8.6.0
         version: 8.6.0(@stryker-mutator/core@8.6.0)(typescript@5.6.2)
       '@stylistic/eslint-plugin':
-        specifier: ^2.8.0
-        version: 2.8.0(eslint@9.12.0(jiti@1.21.6))(typescript@5.6.2)
+        specifier: ^2.9.0
+        version: 2.9.0(eslint@9.12.0(jiti@1.21.6))(typescript@5.6.2)
       '@types/express':
         specifier: ^5.0.0
         version: 5.0.0
@@ -1593,8 +1593,8 @@ packages:
   '@stryker-mutator/util@8.6.0':
     resolution: {integrity: sha512-SruyNDhioBTR7Eq1sSxr9YYBLGHF5s999W63xcOJ+4RdRwyLwNUX1H8DiYnjQC5vs5X/Ap/UsmGwyVnv1ObSnQ==}
 
-  '@stylistic/eslint-plugin@2.8.0':
-    resolution: {integrity: sha512-Ufvk7hP+bf+pD35R/QfunF793XlSRIC7USr3/EdgduK9j13i2JjmsM0LUz3/foS+jDYp2fzyWZA9N44CPur0Ow==}
+  '@stylistic/eslint-plugin@2.9.0':
+    resolution: {integrity: sha512-OrDyFAYjBT61122MIY1a3SfEgy3YCMgt2vL4eoPmvTwDBwyQhAXurxNQznlRD/jESNfYWfID8Ej+31LljvF7Xg==}
     engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
     peerDependencies:
       eslint: '>=8.40.0'
@@ -2893,10 +2893,6 @@ packages:
     resolution: {integrity: sha512-wpc+LXeiyiisxPlEkUzU6svyS1frIO3Mgxj1fdy7Pm8Ygzguax2N3Fa/D/ag1WqbOprdI+uY6wMUl8/a2G+iag==}
     engines: {node: ^12.22.0 || ^14.17.0 || >=16.0.0}
 
-  eslint-visitor-keys@4.0.0:
-    resolution: {integrity: sha512-OtIRv/2GyiF6o/d8K7MYKKbXrOUBIK6SfkIRM4Z0dY3w+LiQ0vy3F57m0Z71bjbyeiWFiHJ8brqnmE6H6/jEuw==}
-    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
-
   eslint-visitor-keys@4.1.0:
     resolution: {integrity: sha512-Q7lok0mqMUSf5a/AdAZkA5a/gHcO6snwQClVNNvFKCAVlxXucdU8pKydU5ZVZjBx5xr37vGbFFWtLQYreLzrZg==}
     engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
@@ -2911,10 +2907,6 @@ packages:
       jiti:
         optional: true
 
-  espree@10.1.0:
-    resolution: {integrity: sha512-M1M6CpiE6ffoigIOWYO9UDP8TMUw9kqb21tf+08IgDYjCsOvCuDt4jQcZmoYxx+w7zlKw9/N0KXfto+I8/FrXA==}
-    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
-
   espree@10.2.0:
     resolution: {integrity: sha512-upbkBJbckcCNBDBDXEbuhjbP68n+scUd3k/U2EkyM9nw+I/jPiL4cLF/Al06CF96wRltFda16sxDFrxsI1v0/g==}
     engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
@@ -7669,12 +7661,12 @@ snapshots:
 
   '@stryker-mutator/util@8.6.0': {}
 
-  '@stylistic/eslint-plugin@2.8.0(eslint@9.12.0(jiti@1.21.6))(typescript@5.6.2)':
+  '@stylistic/eslint-plugin@2.9.0(eslint@9.12.0(jiti@1.21.6))(typescript@5.6.2)':
     dependencies:
-      '@typescript-eslint/utils': 8.6.0(eslint@9.12.0(jiti@1.21.6))(typescript@5.6.2)
+      '@typescript-eslint/utils': 8.8.0(eslint@9.12.0(jiti@1.21.6))(typescript@5.6.2)
       eslint: 9.12.0(jiti@1.21.6)
-      eslint-visitor-keys: 4.0.0
-      espree: 10.1.0
+      eslint-visitor-keys: 4.1.0
+      espree: 10.2.0
       estraverse: 5.3.0
       picomatch: 4.0.2
     transitivePeerDependencies:
@@ -9164,8 +9156,6 @@ snapshots:
 
   eslint-visitor-keys@3.4.3: {}
 
-  eslint-visitor-keys@4.0.0: {}
-
   eslint-visitor-keys@4.1.0: {}
 
   eslint@9.12.0(jiti@1.21.6):
@@ -9210,12 +9200,6 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
-  espree@10.1.0:
-    dependencies:
-      acorn: 8.12.1
-      acorn-jsx: 5.3.2(acorn@8.12.1)
-      eslint-visitor-keys: 4.0.0
-
   espree@10.2.0:
     dependencies:
       acorn: 8.12.1