diff --git a/examples/controllers/package.json b/examples/controllers/package.json
index 4c1bfe1e..19173d8e 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": "^5.2.2",
-    "undici": "^5.26.3"
+    "undici": "^5.27.0"
   },
   "jest-junit": {
     "outputDirectory": "../../test-results",
diff --git a/examples/ecmascript-decorators/package.json b/examples/ecmascript-decorators/package.json
index 4f517b9d..58cda4cc 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": "^5.2.2",
-    "undici": "^5.26.3"
+    "undici": "^5.27.0"
   },
   "jest-junit": {
     "outputDirectory": "../../test-results",
diff --git a/yarn.lock b/yarn.lock
index 05781ce1..c3fed13d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4665,10 +4665,10 @@ typescript@^5.2.2:
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.2.2.tgz#5ebb5e5a5b75f085f22bc3f8460fba308310fa78"
   integrity sha512-mI4WrpHsbCIcwT9cF4FZvr80QUeKvsUsUvKDoR+X/7XHQH98xYD8YHZg7ANtz2GtZt/CBq2QJ0thkGJMHfqc1w==
 
-undici@^5.26.3:
-  version "5.26.4"
-  resolved "https://registry.yarnpkg.com/undici/-/undici-5.26.4.tgz#dc861c35fb53ae025a173a790d984aa9b2e279a1"
-  integrity sha512-OG+QOf0fTLtazL9P9X7yqWxQ+Z0395Wk6DSkyTxtaq3wQEjIroVe7Y4asCX/vcCxYpNGMnwz8F0qbRYUoaQVMw==
+undici@^5.27.0:
+  version "5.27.0"
+  resolved "https://registry.yarnpkg.com/undici/-/undici-5.27.0.tgz#789f2e40ce982b5507899abc2c2ddeb2712b4554"
+  integrity sha512-l3ydWhlhOJzMVOYkymLykcRRXqbUaQriERtR70B9LzNkZ4bX52Fc8wbTDneMiwo8T+AemZXvXaTx+9o5ROxrXg==
   dependencies:
     "@fastify/busboy" "^2.0.0"