diff --git a/package-lock.json b/package-lock.json
index 6fe85cd..1247566 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "version": "0.3.1",
       "license": "MIT",
       "devDependencies": {
-        "@biomejs/biome": "1.9.4",
+        "@biomejs/biome": "2.5.11",
         "@types/node": "20.19.1",
         "@vitest/coverage-v8": "2.0.5",
         "npm-run-all2": "6.2.6",
@@ -126,11 +126,11 @@
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-      "resolved": "https://registry.npmjs.org/@biomejs/biome/-/biome-1.9.4.tgz",
-      "integrity": "sha512-1rkd7G70+o9KkTn5KLmDYXihGoTaIGO9PIIN2ZB7UJxFrWw04CZHPYiMRjYsaDvVV7hP1dYNRLxSANLaBFGpog==",
+      "version": "2.5.11",
+      "resolved": "https://registry.npmjs.org/@biomejs/biome/-/biome-2.5.11.tgz",
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       "dev": true,
-      "hasInstallScript": true,
+      "license": "MIT OR Apache-2.0",
       "bin": {
         "biome": "bin/biome"
       },
@@ -142,24 +142,25 @@
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-        "@biomejs/cli-darwin-x64": "1.9.4",
-        "@biomejs/cli-linux-arm64": "1.9.4",
-        "@biomejs/cli-linux-arm64-musl": "1.9.4",
-        "@biomejs/cli-linux-x64": "1.9.4",
-        "@biomejs/cli-linux-x64-musl": "1.9.4",
-        "@biomejs/cli-win32-arm64": "1.9.4",
-        "@biomejs/cli-win32-x64": "1.9.4"
+        "@biomejs/cli-darwin-arm64": "2.5.11",
+        "@biomejs/cli-darwin-x64": "2.5.11",
+        "@biomejs/cli-linux-arm64": "2.5.11",
+        "@biomejs/cli-linux-arm64-musl": "2.5.11",
+        "@biomejs/cli-linux-x64": "2.5.11",
+        "@biomejs/cli-linux-x64-musl": "2.5.11",
+        "@biomejs/cli-win32-arm64": "2.5.11",
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+      "resolved": "https://registry.npmjs.org/@biomejs/cli-darwin-arm64/-/cli-darwin-arm64-2.5.11.tgz",
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       "cpu": [
         "arm64"
       ],
       "dev": true,
+      "license": "MIT OR Apache-2.0",
       "optional": true,
       "os": [
         "darwin"
@@ -169,13 +170,14 @@
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-      "resolved": "https://registry.npmjs.org/@biomejs/cli-darwin-x64/-/cli-darwin-x64-1.9.4.tgz",
-      "integrity": "sha512-ngYBh/+bEedqkSevPVhLP4QfVPCpb+4BBe2p7Xs32dBgs7rh9nY2AIYUL6BgLw1JVXV8GlpKmb/hNiuIxfPfZg==",
+      "version": "2.5.11",
+      "resolved": "https://registry.npmjs.org/@biomejs/cli-darwin-x64/-/cli-darwin-x64-2.5.11.tgz",
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       "cpu": [
         "x64"
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       "dev": true,
+      "license": "MIT OR Apache-2.0",
       "optional": true,
       "os": [
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@@ -185,13 +187,14 @@
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-      "resolved": "https://registry.npmjs.org/@biomejs/cli-linux-arm64/-/cli-linux-arm64-1.9.4.tgz",
-      "integrity": "sha512-fJIW0+LYujdjUgJJuwesP4EjIBl/N/TcOX3IvIHJQNsAqvV2CHIogsmA94BPG6jZATS4Hi+xv4SkBBQSt1N4/g==",
+      "version": "2.5.11",
+      "resolved": "https://registry.npmjs.org/@biomejs/cli-linux-arm64/-/cli-linux-arm64-2.5.11.tgz",
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       "cpu": [
         "arm64"
       ],
       "dev": true,
+      "license": "MIT OR Apache-2.0",
       "optional": true,
       "os": [
         "linux"
@@ -201,13 +204,14 @@
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-      "resolved": "https://registry.npmjs.org/@biomejs/cli-linux-arm64-musl/-/cli-linux-arm64-musl-1.9.4.tgz",
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+      "resolved": "https://registry.npmjs.org/@biomejs/cli-linux-arm64-musl/-/cli-linux-arm64-musl-2.5.11.tgz",
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       "cpu": [
         "arm64"
       ],
       "dev": true,
+      "license": "MIT OR Apache-2.0",
       "optional": true,
       "os": [
         "linux"
@@ -217,13 +221,14 @@
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-      "resolved": "https://registry.npmjs.org/@biomejs/cli-linux-x64/-/cli-linux-x64-1.9.4.tgz",
-      "integrity": "sha512-lRCJv/Vi3Vlwmbd6K+oQ0KhLHMAysN8lXoCI7XeHlxaajk06u7G+UsFSO01NAs5iYuWKmVZjmiOzJ0OJmGsMwg==",
+      "version": "2.5.11",
+      "resolved": "https://registry.npmjs.org/@biomejs/cli-linux-x64/-/cli-linux-x64-2.5.11.tgz",
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       "cpu": [
         "x64"
       ],
       "dev": true,
+      "license": "MIT OR Apache-2.0",
       "optional": true,
       "os": [
         "linux"
@@ -233,13 +238,14 @@
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     "node_modules/@biomejs/cli-linux-x64-musl": {
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-      "resolved": "https://registry.npmjs.org/@biomejs/cli-linux-x64-musl/-/cli-linux-x64-musl-1.9.4.tgz",
-      "integrity": "sha512-gEhi/jSBhZ2m6wjV530Yy8+fNqG8PAinM3oV7CyO+6c3CEh16Eizm21uHVsyVBEB6RIM8JHIl6AGYCv6Q6Q9Tg==",
+      "version": "2.5.11",
+      "resolved": "https://registry.npmjs.org/@biomejs/cli-linux-x64-musl/-/cli-linux-x64-musl-2.5.11.tgz",
+      "integrity": "sha512-oRRlrchG5EfrEL/EmtT1qUjSNHk3/5LGeZhQqADBBAJF1b1ET6964xEKe7aGlGARzDfza8H/seEsFJl7S6Ql9w==",
       "cpu": [
         "x64"
       ],
       "dev": true,
+      "license": "MIT OR Apache-2.0",
       "optional": true,
       "os": [
         "linux"
@@ -249,13 +255,14 @@
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-      "resolved": "https://registry.npmjs.org/@biomejs/cli-win32-arm64/-/cli-win32-arm64-1.9.4.tgz",
-      "integrity": "sha512-tlbhLk+WXZmgwoIKwHIHEBZUwxml7bRJgk0X2sPyNR3S93cdRq6XulAZRQJ17FYGGzWne0fgrXBKpl7l4M87Hg==",
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+      "resolved": "https://registry.npmjs.org/@biomejs/cli-win32-arm64/-/cli-win32-arm64-2.5.11.tgz",
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       "cpu": [
         "arm64"
       ],
       "dev": true,
+      "license": "MIT OR Apache-2.0",
       "optional": true,
       "os": [
         "win32"
@@ -265,13 +272,14 @@
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-      "resolved": "https://registry.npmjs.org/@biomejs/cli-win32-x64/-/cli-win32-x64-1.9.4.tgz",
-      "integrity": "sha512-8Y5wMhVIPaWe6jw2H+KlEm4wP/f7EW3810ZLmDlrEEy5KvBsb9ECEfu/kMWD484ijfQ8+nIi0giMgu9g1UAuuA==",
+      "version": "2.5.11",
+      "resolved": "https://registry.npmjs.org/@biomejs/cli-win32-x64/-/cli-win32-x64-2.5.11.tgz",
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       "cpu": [
         "x64"
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       "dev": true,
+      "license": "MIT OR Apache-2.0",
       "optional": true,
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@@ -6641,74 +6649,74 @@
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-        "@biomejs/cli-darwin-x64": "1.9.4",
-        "@biomejs/cli-linux-arm64": "1.9.4",
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-        "@biomejs/cli-win32-arm64": "1.9.4",
-        "@biomejs/cli-win32-x64": "1.9.4"
+        "@biomejs/cli-darwin-arm64": "2.5.11",
+        "@biomejs/cli-darwin-x64": "2.5.11",
+        "@biomejs/cli-linux-arm64": "2.5.11",
+        "@biomejs/cli-linux-arm64-musl": "2.5.11",
+        "@biomejs/cli-linux-x64": "2.5.11",
+        "@biomejs/cli-linux-x64-musl": "2.5.11",
+        "@biomejs/cli-win32-arm64": "2.5.11",
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diff --git a/package.json b/package.json
index dcaef27..d9bbd3d 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
   },
   "homepage": "https://github.com/korosuke613/linear-webhook#readme",
   "devDependencies": {
-    "@biomejs/biome": "1.9.4",
+    "@biomejs/biome": "2.5.11",
     "@types/node": "20.19.1",
     "@vitest/coverage-v8": "2.0.5",
     "npm-run-all2": "6.2.6",