diff --git a/backend/package-lock.json b/backend/package-lock.json
index 31398147..83e33e7e 100644
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -9,7 +9,7 @@
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       "license": "MIT",
       "dependencies": {
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         "@hono/node-server": "^1.0.0",
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@@ -36,26 +36,143 @@
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       "license": "SEE LICENSE IN README.md",
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+        "claude": "bin/claude.exe"
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+      "optional": true,
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+      "license": "SEE LICENSE IN LICENSE.md",
+      "optional": true,
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+        "win32"
+      ]
+    },
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+      "resolved": "https://registry.npmjs.org/@anthropic-ai/claude-code-win32-x64/-/claude-code-win32-x64-2.1.163.tgz",
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+      "optional": true,
+      "os": [
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     "node_modules/@esbuild/aix-ppc64": {
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@@ -718,291 +835,6 @@
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diff --git a/backend/package.json b/backend/package.json
index 55c0e3d2..80b8c5d3 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -54,7 +54,7 @@
     "prepublishOnly": "npm run build && npm run test"
   },
   "dependencies": {
-    "@anthropic-ai/claude-code": "2.0.74",
+    "@anthropic-ai/claude-code": "2.1.163",
     "@hono/node-server": "^1.0.0",
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@@ -74,6 +74,6 @@
     "vitest": "^3.2.4"
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   "peerDependencies": {
-    "@anthropic-ai/claude-code": "2.0.74"
+    "@anthropic-ai/claude-code": "2.1.163"
   }
 }