diff --git a/fixtures/flight/package.json b/fixtures/flight/package.json
index 6d48c311cce..ba79f9e3fb0 100644
--- a/fixtures/flight/package.json
+++ b/fixtures/flight/package.json
@@ -59,7 +59,7 @@
     "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": "^5.3.4",
     "webpack-hot-middleware": "^2.25.3",
diff --git a/fixtures/flight/yarn.lock b/fixtures/flight/yarn.lock
index 928e18a35eb..b4405a57597 100644
--- a/fixtures/flight/yarn.lock
+++ b/fixtures/flight/yarn.lock
@@ -2384,11 +2384,6 @@
   resolved "https://registry.yarnpkg.com/@csstools/selector-specificity/-/selector-specificity-2.0.2.tgz#1bfafe4b7ed0f3e4105837e056e0a89b108ebe36"
   integrity sha512-IkpVW/ehM1hWKln4fCA3NzJU8KwD+kIOvPZA4cqxoJHtE21CCzjyp+Kxbu0i5I4tBNOlXPL9mjwnWlL0VEG4Fg==
 
-"@fastify/busboy@^2.0.0":
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/@fastify/busboy/-/busboy-2.1.1.tgz#b9da6a878a371829a0502c9b6c1c143ef6663f4d"
-  integrity sha512-vBZP4NlzfOlerQTnba4aqZoMhE/a9HY7HRqoOPaETQcSQuWEIyZMHGfVu6w9wGtGK5fED5qRs2DteVCjOH60sA==
-
 "@isaacs/cliui@^8.0.2":
   version "8.0.2"
   resolved "https://registry.yarnpkg.com/@isaacs/cliui/-/cliui-8.0.2.tgz#b37667b7bc181c168782259bab42474fbf52b550"
@@ -9168,12 +9163,10 @@ 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 "5.28.4"
-  resolved "https://registry.yarnpkg.com/undici/-/undici-5.28.4.tgz#6b280408edb6a1a604a9b20340f45b422e373068"
-  integrity sha512-72RFADWFqKmUb2hmmvNODKL3p9hcB6Gt2DOQMis1SEBaV6a4MH8soBvzg+95CYhCKPFedut2JY9bMfrDl9D23g==
-  dependencies:
-    "@fastify/busboy" "^2.0.0"
+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@^2.0.0:
   version "2.0.0"