diff --git a/test/harness/package-lock.json b/test/harness/package-lock.json
index 9ed1974e95..549f4f618f 100644
--- a/test/harness/package-lock.json
+++ b/test/harness/package-lock.json
@@ -9,7 +9,7 @@
       "version": "1.0.0",
       "license": "ISC",
       "devDependencies": {
-        "@github/copilot": "^0.0.400",
+        "@github/copilot": "^0.0.401",
         "@types/node": "^25.2.0",
         "openai": "^6.17.0",
         "tsx": "^4.21.0",
@@ -461,27 +461,27 @@
       }
     },
     "node_modules/@github/copilot": {
-      "version": "0.0.400",
-      "resolved": "https://registry.npmjs.org/@github/copilot/-/copilot-0.0.400.tgz",
-      "integrity": "sha512-OliuUpFFtgp2WN/LEpj9Gzmbe4SyRLWsbqcYnJojAN1whd0l8JgnJBqzo3LXkZf5nUbVQ57IlU93BpjbIhmHrQ==",
+      "version": "0.0.401",
+      "resolved": "https://registry.npmjs.org/@github/copilot/-/copilot-0.0.401.tgz",
+      "integrity": "sha512-4VUBnPGcMlib8i+ZPsDxVzXk7F75kSOCjk+Zkb8sdK3kPmBr/mi1vLFmww0ywtlEYCimQAQ/BLSkMSf3rRa5VA==",
       "dev": true,
       "license": "SEE LICENSE IN LICENSE.md",
       "bin": {
         "copilot": "npm-loader.js"
       },
       "optionalDependencies": {
-        "@github/copilot-darwin-arm64": "0.0.400",
-        "@github/copilot-darwin-x64": "0.0.400",
-        "@github/copilot-linux-arm64": "0.0.400",
-        "@github/copilot-linux-x64": "0.0.400",
-        "@github/copilot-win32-arm64": "0.0.400",
-        "@github/copilot-win32-x64": "0.0.400"
+        "@github/copilot-darwin-arm64": "0.0.401",
+        "@github/copilot-darwin-x64": "0.0.401",
+        "@github/copilot-linux-arm64": "0.0.401",
+        "@github/copilot-linux-x64": "0.0.401",
+        "@github/copilot-win32-arm64": "0.0.401",
+        "@github/copilot-win32-x64": "0.0.401"
       }
     },
     "node_modules/@github/copilot-darwin-arm64": {
-      "version": "0.0.400",
-      "resolved": "https://registry.npmjs.org/@github/copilot-darwin-arm64/-/copilot-darwin-arm64-0.0.400.tgz",
-      "integrity": "sha512-Grpv/lYiLih0W8G/ofueNApz3WRGPkCFDM7i1ecc0slfI/JkjyQIjZWnD7a4lK5iSjBWQGIaKTHSj8e//d8Gug==",
+      "version": "0.0.401",
+      "resolved": "https://registry.npmjs.org/@github/copilot-darwin-arm64/-/copilot-darwin-arm64-0.0.401.tgz",
+      "integrity": "sha512-qaQDXDO/lILhgY5iu8JNrCgrREXq1vainUtSptAzJkwk/nOihOftSYbLfzKP1GbqEtEMTttFvqMyGhVf9pRchQ==",
       "cpu": [
         "arm64"
       ],
@@ -496,9 +496,9 @@
       }
     },
     "node_modules/@github/copilot-darwin-x64": {
-      "version": "0.0.400",
-      "resolved": "https://registry.npmjs.org/@github/copilot-darwin-x64/-/copilot-darwin-x64-0.0.400.tgz",
-      "integrity": "sha512-c/qJC6qJIXjr5D274EvZc1FyKAktWrz2n6zjyHoqix8o8VJEfSo+Sqk4DPV1eZrrYCyE1EQyfNLvv80x1+pcTQ==",
+      "version": "0.0.401",
+      "resolved": "https://registry.npmjs.org/@github/copilot-darwin-x64/-/copilot-darwin-x64-0.0.401.tgz",
+      "integrity": "sha512-i2m+7ljujO7b+24f2ohHyIn2AaqyfHX9LrRozopcK6uWHnF3d+JpQvz249Z9B76cXMyvRi/SNWEs8xV6mRqNsw==",
       "cpu": [
         "x64"
       ],
@@ -513,9 +513,9 @@
       }
     },
     "node_modules/@github/copilot-linux-arm64": {
-      "version": "0.0.400",
-      "resolved": "https://registry.npmjs.org/@github/copilot-linux-arm64/-/copilot-linux-arm64-0.0.400.tgz",
-      "integrity": "sha512-8pcKXjFopVHZmAK4nFfV48/KN3WwmVm4HDcpPESvNHjoRj8PuFN9Ef9llD6QKerYbQc38C+Pu21IXimRvqqKHg==",
+      "version": "0.0.401",
+      "resolved": "https://registry.npmjs.org/@github/copilot-linux-arm64/-/copilot-linux-arm64-0.0.401.tgz",
+      "integrity": "sha512-TH++AIdjBTWVzrJPYD8riKXVMWTSIz6W13fmKXWfGKoW+cm+sOko5yqveisAAxLaCCbg+oDnkvxt7bVLgWWvgg==",
       "cpu": [
         "arm64"
       ],
@@ -530,9 +530,9 @@
       }
     },
     "node_modules/@github/copilot-linux-x64": {
-      "version": "0.0.400",
-      "resolved": "https://registry.npmjs.org/@github/copilot-linux-x64/-/copilot-linux-x64-0.0.400.tgz",
-      "integrity": "sha512-BW+u6m/z894KHwJWNWGDiFAfMv83U1B1DVxrzJ1vdmGn05R9jIOp0TNaZtv0jh/ycGiQJ8s2cxFdcKtWxEcenQ==",
+      "version": "0.0.401",
+      "resolved": "https://registry.npmjs.org/@github/copilot-linux-x64/-/copilot-linux-x64-0.0.401.tgz",
+      "integrity": "sha512-PCqHyDuzD7bIa53EdMZS2P5aFLl5RyE1sTM6DH3S9QrQE7G8pLMk6A7UDVsdC3lmkfPvbPYzIPOvbSkfoJpfZw==",
       "cpu": [
         "x64"
       ],
@@ -547,9 +547,9 @@
       }
     },
     "node_modules/@github/copilot-win32-arm64": {
-      "version": "0.0.400",
-      "resolved": "https://registry.npmjs.org/@github/copilot-win32-arm64/-/copilot-win32-arm64-0.0.400.tgz",
-      "integrity": "sha512-p299J676Q8BepAcR1DPMBqvW9M2nMr+fHfNyD5ketEHHc2gDF2KaWW83iXD0HqF5df7La7gbgJXYonL9Ct11Sw==",
+      "version": "0.0.401",
+      "resolved": "https://registry.npmjs.org/@github/copilot-win32-arm64/-/copilot-win32-arm64-0.0.401.tgz",
+      "integrity": "sha512-rpBl73zAWSTzFTrf8GyJKiT8V2iTYJ3DhPnadBEKadEj3PFV2/KQJHOG58VFPlLLPJ7UzjA4LCJO5EnyjHBXOA==",
       "cpu": [
         "arm64"
       ],
@@ -564,9 +564,9 @@
       }
     },
     "node_modules/@github/copilot-win32-x64": {
-      "version": "0.0.400",
-      "resolved": "https://registry.npmjs.org/@github/copilot-win32-x64/-/copilot-win32-x64-0.0.400.tgz",
-      "integrity": "sha512-y/77mfEB7MP2eHaRasYBKTnbO/BzaRp6jeSkPC+WUZqR62kRxmvBYCbVmBK66PZ1W6UFbwNPdHBQHebfuOePvg==",
+      "version": "0.0.401",
+      "resolved": "https://registry.npmjs.org/@github/copilot-win32-x64/-/copilot-win32-x64-0.0.401.tgz",
+      "integrity": "sha512-UKA163JzG5DJ8LHGrSt6hk9mEj377T6T9ZiuWj+w0I8gXK7jnjw5aSnACGx4BvSDyHNkLN1fgIpP8KJYde/nZA==",
       "cpu": [
         "x64"
       ],
diff --git a/test/harness/package.json b/test/harness/package.json
index 76b4ccb4aa..9256219958 100644
--- a/test/harness/package.json
+++ b/test/harness/package.json
@@ -11,7 +11,7 @@
     "test": "vitest run"
   },
   "devDependencies": {
-    "@github/copilot": "^0.0.400",
+    "@github/copilot": "^0.0.401",
     "@types/node": "^25.2.0",
     "openai": "^6.17.0",
     "tsx": "^4.21.0",