diff --git a/examples/controllers/package.json b/examples/controllers/package.json
index 07aafbc2..e0660f15 100644
--- a/examples/controllers/package.json
+++ b/examples/controllers/package.json
@@ -24,7 +24,7 @@
     "jest-ts-webcompat-resolver": "^1.0.0",
     "ts-jest": "^29.2.5",
     "typescript": "^5.6.2",
-    "undici": "^6.19.8"
+    "undici": "^6.20.1"
   },
   "jest-junit": {
     "outputDirectory": "../../test-results",
diff --git a/examples/ecmascript-decorators/package.json b/examples/ecmascript-decorators/package.json
index dfe5eab0..916ee72f 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": "^29.2.5",
     "typescript": "^5.6.2",
-    "undici": "^6.19.8"
+    "undici": "^6.20.1"
   },
   "jest-junit": {
     "outputDirectory": "../../test-results",
diff --git a/yarn.lock b/yarn.lock
index d880eb43..60195319 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4069,10 +4069,10 @@ 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@^6.19.8:
-  version "6.19.8"
-  resolved "https://registry.yarnpkg.com/undici/-/undici-6.19.8.tgz#002d7c8a28f8cc3a44ff33c3d4be4d85e15d40e1"
-  integrity sha512-U8uCCl2x9TK3WANvmBavymRzxbfFYG+tAu+fgx3zxQy3qdagQqBLwJVrdyO1TBfUXvfKveMKJZhpvUYoOjM+4g==
+undici@^6.20.1:
+  version "6.20.1"
+  resolved "https://registry.yarnpkg.com/undici/-/undici-6.20.1.tgz#fbb87b1e2b69d963ff2d5410a40ffb4c9e81b621"
+  integrity sha512-AjQF1QsmqfJys+LXfGTNum+qw4S88CojRInG/6t31W/1fk6G59s92bnAvGz5Cmur+kQv2SURXEvvudLmbrE8QA==
 
 update-browserslist-db@^1.1.0:
   version "1.1.1"