diff --git a/packages/gitlab-mcp/package.json b/packages/gitlab-mcp/package.json
index 33bd71cb6..3022d9393 100644
--- a/packages/gitlab-mcp/package.json
+++ b/packages/gitlab-mcp/package.json
@@ -568,7 +568,7 @@
     "pino": "^10.3.1",
     "pino-pretty": "^13.1.3",
     "transliteration": "^2.6.1",
-    "undici": "^8.5.0",
+    "undici": "^8.9.0",
     "xstate": "^5.32.1",
     "yaml": "^2.9.0",
     "zod": "^4.4.3"
diff --git a/yarn.lock b/yarn.lock
index 08bd887cf..985746ac4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2178,7 +2178,7 @@ __metadata:
     ts-jest: "npm:^29.4.11"
     ts-node: "npm:^10.9.2"
     typescript: "npm:^6.0.3"
-    undici: "npm:^8.5.0"
+    undici: "npm:^8.9.0"
     vitepress: "npm:2.0.0-alpha.17"
     xstate: "npm:^5.32.1"
     yaml: "npm:^2.9.0"
@@ -8720,10 +8720,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"undici@npm:^8.5.0":
-  version: 8.5.0
-  resolution: "undici@npm:8.5.0"
-  checksum: 10c0/7c25fd96a4dcc607b905995f6feec948f74a6759cadbea4c6eb9402517aab4887987c8001c80d482297d04f975f44a383325b89577ac21e587983ed088408065
+"undici@npm:^8.9.0":
+  version: 8.9.0
+  resolution: "undici@npm:8.9.0"
+  checksum: 10c0/e3d9fa35a9aa8360d9f56e66bd372f451ee053e25066a97fd9fab3816267035660f67870c6d709a58a5411551657af78c4475be5b31c113b04f70251309900d0
   languageName: node
   linkType: hard