diff --git a/package.json b/package.json
index 65d88e2..3f8b3cc 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "jest": "^30.4.2",
     "msw": "^2.11.2",
     "openapi-merge-cli": "^1.3.2",
-    "prettier": "^3.8.1",
+    "prettier": "^3.9.4",
     "ts-jest": "^29.4.11",
     "ts-node": "^10.9.2",
     "typescript": "^5.9.3"
diff --git a/yarn.lock b/yarn.lock
index bd1b489..4530d99 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1138,7 +1138,7 @@ __metadata:
     jest: "npm:^30.4.2"
     msw: "npm:^2.11.2"
     openapi-merge-cli: "npm:^1.3.2"
-    prettier: "npm:^3.8.1"
+    prettier: "npm:^3.9.4"
     ts-jest: "npm:^29.4.11"
     ts-node: "npm:^10.9.2"
     typescript: "npm:^5.9.3"
@@ -4469,12 +4469,12 @@ __metadata:
   languageName: node
   linkType: hard
 
-"prettier@npm:^3.8.1":
-  version: 3.8.1
-  resolution: "prettier@npm:3.8.1"
+"prettier@npm:^3.9.4":
+  version: 3.9.4
+  resolution: "prettier@npm:3.9.4"
   bin:
     prettier: bin/prettier.cjs
-  checksum: 10c0/33169b594009e48f570471271be7eac7cdcf88a209eed39ac3b8d6d78984039bfa9132f82b7e6ba3b06711f3bfe0222a62a1bfb87c43f50c25a83df1b78a2c42
+  checksum: 10c0/dc6ec13d692745c6b7e7bf39beda9eb1b3b76c619118319bce393928c392264b1273337c75f80499695e165affefc7b3a9d2ebb18983af0a8f4dfbb2f45f6ff3
   languageName: node
   linkType: hard