diff --git a/backend/package-lock.json b/backend/package-lock.json
index 72bf2d7f..fbd1574a 100644
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -9,7 +9,7 @@
       "version": "0.1.56",
       "license": "MIT",
       "dependencies": {
-        "@anthropic-ai/claude-code": "1.0.108",
+        "@anthropic-ai/claude-code": "1.0.120",
         "@hono/node-server": "^1.0.0",
         "@logtape/logtape": "^1.0.0",
         "@logtape/pretty": "^1.0.0",
@@ -33,15 +33,12 @@
       },
       "engines": {
         "node": ">=20.0.0"
-      },
-      "peerDependencies": {
-        "@anthropic-ai/claude-code": "1.0.108"
       }
     },
     "node_modules/@anthropic-ai/claude-code": {
-      "version": "1.0.108",
-      "resolved": "https://registry.npmjs.org/@anthropic-ai/claude-code/-/claude-code-1.0.108.tgz",
-      "integrity": "sha512-9CsfjFBsv8N8I69yqdmv0Jcp9Xpp+kQIONZRIKpnEtNUZn3Q61vYyaFTliobJPk9M/tmuXjYCh3VEpLHu9Jotw==",
+      "version": "1.0.120",
+      "resolved": "https://registry.npmjs.org/@anthropic-ai/claude-code/-/claude-code-1.0.120.tgz",
+      "integrity": "sha512-Ga+GbFg4A+woD2LHrPSiDalr6434v3B+m7AmgIaCDO1rg4dQmOJlPd3p0G7NbhD9t/RPqj6j1AZKmlx0CbOXyQ==",
       "license": "SEE LICENSE IN README.md",
       "bin": {
         "claude": "cli.js"
diff --git a/backend/package.json b/backend/package.json
index 070435aa..b5664a74 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": "1.0.108",
+    "@anthropic-ai/claude-code": "1.0.120",
     "@hono/node-server": "^1.0.0",
     "@logtape/logtape": "^1.0.0",
     "@logtape/pretty": "^1.0.0",
@@ -74,6 +74,6 @@
     "vitest": "^3.2.4"
   },
   "peerDependencies": {
-    "@anthropic-ai/claude-code": "1.0.108"
+    "@anthropic-ai/claude-code": "1.0.120"
   }
 }