diff --git a/package.json b/package.json
index e232b246..a637ce27 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
   "devDependencies": {
     "@octokit/rest": "21.1.1",
     "nock": "14.0.10",
-    "prettier": "3.6.2",
+    "prettier": "3.9.9",
     "tsup": "8.5.0",
     "typescript": "5.9.3",
     "vitest": "4.0.4"
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index c5066d48..21ac0a9a 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -17,8 +17,8 @@ devDependencies:
     specifier: 14.0.10
     version: 14.0.10
   prettier:
-    specifier: 3.6.2
-    version: 3.6.2
+    specifier: 3.9.9
+    version: 3.9.9
   tsup:
     specifier: 8.5.0
     version: 8.5.0(typescript@5.9.3)
@@ -629,6 +629,7 @@ packages:
 
   /@octokit/webhooks-types@7.6.1:
     resolution: {integrity: sha512-S8u2cJzklBC0FgTwWVLaM8tMrDuDMVE4xiTK4EYXM9GntyvrdbSoxqDQa+Fh57CCNApyIpyeqPhhFEmHPfrXgw==}
+    deprecated: Package no longer supported. Contact Support at https://www.npmjs.com/support for more info.
     dev: false
 
   /@octokit/webhooks@12.3.2:
@@ -2195,6 +2196,7 @@ packages:
 
   /glob@10.4.5:
     resolution: {integrity: sha512-7Bv8RF0k6xjo7d4A/PxYLbUCfb6c+Vpd2/mB2yRDlew7Jb5hEXiCD9ibfO7wpk8i4sevK6DFny9h7EYbM3/sHg==}
+    deprecated: Old versions of glob are not supported, and contain widely publicized security vulnerabilities, which have been fixed in the current version. Please update. Support for old versions may be purchased (at exorbitant rates) by contacting i@izs.me
     hasBin: true
     dependencies:
       foreground-child: 3.3.0
@@ -2846,8 +2848,8 @@ packages:
       xtend: 4.0.2
     dev: false
 
-  /prettier@3.6.2:
-    resolution: {integrity: sha512-I7AIg5boAr5R0FFtJ6rCfD+LFsWHp81dolrFD8S79U9tb8Az2nGrJncnMSnys+bpQJfRUzqs9hnA81OAA3hCuQ==}
+  /prettier@3.9.9:
+    resolution: {integrity: sha512-Z/CJHIkdujO/OtN7nXUii0Rf3VT5SRuhjBA82Xvu2XhBUgX3nhP67T0LHceBdQLex7OOFGTox+Q5Yg8Jk2Qivg==}
     engines: {node: '>=14'}
     hasBin: true
     dev: true