diff --git a/proxy-server/package-lock.json b/proxy-server/package-lock.json
index 63cf735..2795a95 100644
--- a/proxy-server/package-lock.json
+++ b/proxy-server/package-lock.json
@@ -21,7 +21,7 @@
         "xcode-copilot-server": "dist/index.js"
       },
       "devDependencies": {
-        "@types/node": "25.9.3",
+        "@types/node": "26.0.0",
         "@types/plist": "3.0.5",
         "llm-mock-server": "1.1.0",
         "oxfmt": "0.54.0",
@@ -2193,13 +2193,13 @@
       "license": "MIT"
     },
     "node_modules/@types/node": {
-      "version": "25.9.3",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-25.9.3.tgz",
-      "integrity": "sha512-603BddQMv3pUcr4U2dhujk83N2tTDVr/34wII2B6bJy6g+8WD6yUb11jszNs0gdi4PesVWl7ABt8nYMVpnLUcg==",
+      "version": "26.0.0",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-26.0.0.tgz",
+      "integrity": "sha512-vf2YFi1iY9lHGwNJMs01biZFbKJkrZR1T6/MlzjhJLPdntOHLhTrDSnSVcdtvjihi4VQNlrFRIxLsDBlQpAipA==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "undici-types": ">=7.24.0 <7.24.7"
+        "undici-types": "~8.3.0"
       }
     },
     "node_modules/@types/plist": {
@@ -3753,9 +3753,9 @@
       }
     },
     "node_modules/undici-types": {
-      "version": "7.24.6",
-      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.24.6.tgz",
-      "integrity": "sha512-WRNW+sJgj5OBN4/0JpHFqtqzhpbnV0GuB+OozA9gCL7a993SmU+1JBZCzLNxYsbMfIeDL+lTsphD5jN5N+n0zg==",
+      "version": "8.3.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-8.3.0.tgz",
+      "integrity": "sha512-j375ScV60dom+YkPFIfTLcOiPxkN/buHz5GobjLhixFuANaNs3C9l4GmrWqejgXWJ7BbJcFYpTEUkS1Ge8bpZQ==",
       "dev": true,
       "license": "MIT"
     },
diff --git a/proxy-server/package.json b/proxy-server/package.json
index 5aaec37..5480575 100644
--- a/proxy-server/package.json
+++ b/proxy-server/package.json
@@ -41,7 +41,7 @@
     "zod": "4.4.3"
   },
   "devDependencies": {
-    "@types/node": "25.9.3",
+    "@types/node": "26.0.0",
     "@types/plist": "3.0.5",
     "llm-mock-server": "1.1.0",
     "oxfmt": "0.54.0",