diff --git a/fixtures/flight/package.json b/fixtures/flight/package.json
index 3aed108e601..d5e33036504 100644
--- a/fixtures/flight/package.json
+++ b/fixtures/flight/package.json
@@ -57,7 +57,7 @@
     "style-loader": "^3.3.1",
     "tailwindcss": "^3.0.2",
     "terser-webpack-plugin": "^5.2.5",
-    "undici": "^5.20.0",
+    "undici": "^6.23.0",
     "webpack": "^5.64.4",
     "webpack-dev-middleware": "^5.3.1",
     "webpack-hot-middleware": "^2.25.3",
diff --git a/fixtures/flight/yarn.lock b/fixtures/flight/yarn.lock
index 931ed34432c..e957678592b 100644
--- a/fixtures/flight/yarn.lock
+++ b/fixtures/flight/yarn.lock
@@ -8405,12 +8405,10 @@ undefsafe@^2.0.5:
   resolved "https://registry.yarnpkg.com/undefsafe/-/undefsafe-2.0.5.tgz#38733b9327bdcd226db889fb723a6efd162e6e2c"
   integrity sha512-WxONCrssBM8TSPRqN5EmsjVrsv4A8X12J4ArBiiayv3DyyG3ZlIg6yysuuSYdZsVz3TKcTg2fd//Ujd4CHV1iA==
 
-undici@^5.20.0:
-  version "5.20.0"
-  resolved "https://registry.yarnpkg.com/undici/-/undici-5.20.0.tgz#6327462f5ce1d3646bcdac99da7317f455bcc263"
-  integrity sha512-J3j60dYzuo6Eevbawwp1sdg16k5Tf768bxYK4TUJRH7cBM4kFCbf3mOnM/0E3vQYXvpxITbbWmBafaDbxLDz3g==
-  dependencies:
-    busboy "^1.6.0"
+undici@^6.23.0:
+  version "6.23.0"
+  resolved "https://registry.yarnpkg.com/undici/-/undici-6.23.0.tgz#7953087744d9095a96f115de3140ca3828aff3a4"
+  integrity sha512-VfQPToRA5FZs/qJxLIinmU59u0r7LXqoJkCzinq3ckNJp3vKEh7jTWN589YQ5+aoAC/TGRLyJLCPKcLQbM8r9g==
 
 unicode-canonical-property-names-ecmascript@^1.0.4:
   version "1.0.4"