diff --git a/examples/controllers/package.json b/examples/controllers/package.json
index b7af612c..835e750d 100644
--- a/examples/controllers/package.json
+++ b/examples/controllers/package.json
@@ -24,7 +24,7 @@
     "jest-ts-webcompat-resolver": "^1.0.0",
     "ts-jest": "^29.1.1",
     "typescript": "^5.3.3",
-    "undici": "^5.28.2"
+    "undici": "^6.2.1"
   },
   "jest-junit": {
     "outputDirectory": "../../test-results",
diff --git a/examples/ecmascript-decorators/package.json b/examples/ecmascript-decorators/package.json
index 23827b15..ad053e73 100644
--- a/examples/ecmascript-decorators/package.json
+++ b/examples/ecmascript-decorators/package.json
@@ -23,7 +23,7 @@
     "jest-ts-webcompat-resolver": "^1.0.0",
     "ts-jest": "^29.1.1",
     "typescript": "^5.3.3",
-    "undici": "^5.28.2"
+    "undici": "^6.2.1"
   },
   "jest-junit": {
     "outputDirectory": "../../test-results",
diff --git a/yarn.lock b/yarn.lock
index 2593daf7..97bdff33 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4701,10 +4701,10 @@ undici-types@~5.26.4:
   resolved "https://registry.yarnpkg.com/undici-types/-/undici-types-5.26.5.tgz#bcd539893d00b56e964fd2657a4866b221a65617"
   integrity sha512-JlCMO+ehdEIKqlFxk6IfVoAUVmgz7cU7zD/h9XZ0qzeosSHmUJVOzSQvvYSYWXkFXC+IfLKSIffhv0sVZup6pA==
 
-undici@^5.28.2:
-  version "5.28.2"
-  resolved "https://registry.yarnpkg.com/undici/-/undici-5.28.2.tgz#fea200eac65fc7ecaff80a023d1a0543423b4c91"
-  integrity sha512-wh1pHJHnUeQV5Xa8/kyQhO7WFa8M34l026L5P/+2TYiakvGy5Rdc8jWZVyG7ieht/0WgJLEd3kcU5gKx+6GC8w==
+undici@^6.2.1:
+  version "6.2.1"
+  resolved "https://registry.yarnpkg.com/undici/-/undici-6.2.1.tgz#554293044619e065d986c37a4c92185c3bc02121"
+  integrity sha512-7Wa9thEM6/LMnnKtxJHlc8SrTlDmxqJecgz1iy8KlsN0/iskQXOQCuPkrZLXbElPaSw5slFFyKIKXyJ3UtbApw==
   dependencies:
     "@fastify/busboy" "^2.0.0"