diff --git a/package-lock.json b/package-lock.json
index 5526d051..85a56a7d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16391,6 +16391,7 @@
       "version": "7.15.0",
       "resolved": "https://registry.npmjs.org/undici/-/undici-7.15.0.tgz",
       "integrity": "sha512-7oZJCPvvMvTd0OlqWsIxTuItTpJBpU1tcbVl24FMn3xt3+VSunwUasmfPJRE57oNO1KsZ4PgA1xTdAX4hq8NyQ==",
+      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=20.18.1"
@@ -17532,7 +17533,7 @@
         "strip-ansi": "^7.1.0",
         "strip-json-comments": "^3.1.1",
         "tar": "^7.5.2",
-        "undici": "^7.10.0",
+        "undici": "^6.22.0",
         "update-notifier": "^7.3.1",
         "wrap-ansi": "9.0.2",
         "yargs": "^17.7.2",
@@ -17614,6 +17615,15 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "packages/cli/node_modules/undici": {
+      "version": "6.22.0",
+      "resolved": "https://registry.npmjs.org/undici/-/undici-6.22.0.tgz",
+      "integrity": "sha512-hU/10obOIu62MGYjdskASR3CUAiYaFTtC9Pa6vHyf//mAipSvSQg6od2CnJswq7fvzNS3zJhxoRkgNVaHurWKw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=18.17"
+      }
+    },
     "packages/core": {
       "name": "@qwen-code/qwen-code-core",
       "version": "0.5.1",
@@ -17659,7 +17669,7 @@
         "simple-git": "^3.28.0",
         "strip-ansi": "^7.1.0",
         "tiktoken": "^1.0.21",
-        "undici": "^7.10.0",
+        "undici": "^6.22.0",
         "uuid": "^9.0.1",
         "ws": "^8.18.0"
       },
@@ -17755,6 +17765,15 @@
         "url": "https://github.com/sponsors/jonschlinkert"
       }
     },
+    "packages/core/node_modules/undici": {
+      "version": "6.22.0",
+      "resolved": "https://registry.npmjs.org/undici/-/undici-6.22.0.tgz",
+      "integrity": "sha512-hU/10obOIu62MGYjdskASR3CUAiYaFTtC9Pa6vHyf//mAipSvSQg6od2CnJswq7fvzNS3zJhxoRkgNVaHurWKw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=18.17"
+      }
+    },
     "packages/sdk-typescript": {
       "name": "@qwen-code/sdk",
       "version": "0.5.1",
@@ -20218,7 +20237,7 @@
         "@types/react": "^19.1.8",
         "@types/react-dom": "^19.1.6",
         "@types/semver": "^7.7.1",
-        "@types/vscode": "^1.99.0",
+        "@types/vscode": "^1.85.0",
         "@typescript-eslint/eslint-plugin": "^8.31.1",
         "@typescript-eslint/parser": "^8.31.1",
         "@vscode/vsce": "^3.6.0",
@@ -20233,7 +20252,7 @@
         "vitest": "^3.2.4"
       },
       "engines": {
-        "vscode": "^1.99.0"
+        "vscode": "^1.85.0"
       }
     },
     "packages/vscode-ide-companion/node_modules/@types/react": {
diff --git a/packages/cli/package.json b/packages/cli/package.json
index 150c12e5..0f1e6854 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -64,7 +64,7 @@
     "strip-ansi": "^7.1.0",
     "strip-json-comments": "^3.1.1",
     "tar": "^7.5.2",
-    "undici": "^7.10.0",
+    "undici": "^6.22.0",
     "extract-zip": "^2.0.1",
     "update-notifier": "^7.3.1",
     "wrap-ansi": "9.0.2",
diff --git a/packages/core/package.json b/packages/core/package.json
index 77fdbb28..9a9cc9d3 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -63,7 +63,7 @@
     "simple-git": "^3.28.0",
     "strip-ansi": "^7.1.0",
     "tiktoken": "^1.0.21",
-    "undici": "^7.10.0",
+    "undici": "^6.22.0",
     "uuid": "^9.0.1",
     "ws": "^8.18.0"
   },
diff --git a/packages/vscode-ide-companion/package.json b/packages/vscode-ide-companion/package.json
index faffc3f5..a5328582 100644
--- a/packages/vscode-ide-companion/package.json
+++ b/packages/vscode-ide-companion/package.json
@@ -11,7 +11,7 @@
     "directory": "packages/vscode-ide-companion"
   },
   "engines": {
-    "vscode": "^1.99.0"
+    "vscode": "^1.85.0"
   },
   "license": "LICENSE",
   "preview": true,
@@ -137,7 +137,7 @@
     "@types/react": "^19.1.8",
     "@types/react-dom": "^19.1.6",
     "@types/semver": "^7.7.1",
-    "@types/vscode": "^1.99.0",
+    "@types/vscode": "^1.85.0",
     "@typescript-eslint/eslint-plugin": "^8.31.1",
     "@typescript-eslint/parser": "^8.31.1",
     "@vscode/vsce": "^3.6.0",