diff --git a/backend/package-lock.json b/backend/package-lock.json
index 618361c..cf2fedb 100644
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -11,7 +11,7 @@
       "dependencies": {
         "@anthropic-ai/claude-code": "1.0.108",
         "@hono/node-server": "^1.0.0",
-        "@logtape/logtape": "^1.0.0",
+        "@logtape/logtape": "^2.0.2",
         "@logtape/pretty": "^1.0.0",
         "commander": "^14.0.0",
         "hono": "^4.8.5"
@@ -977,9 +977,9 @@
       "license": "MIT"
     },
     "node_modules/@logtape/logtape": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/@logtape/logtape/-/logtape-1.1.0.tgz",
-      "integrity": "sha512-WJksvFQQxHRm+OgyQWibeudPcJnYUIECxVRBnckPdotiyaF49dRmaaZylyHstO5is1dS3i3o/4XnoBZz8Uophw==",
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/@logtape/logtape/-/logtape-2.0.2.tgz",
+      "integrity": "sha512-cveUBLbCMFkvkLycP/2vNWvywl47JcJbazHIju94/QNGboZ/jyYAgZIm0ZXezAOx3eIz8OG1EOZ5CuQP3+2FQg==",
       "funding": [
         "https://github.com/sponsors/dahlia"
       ],
diff --git a/backend/package.json b/backend/package.json
index 070435a..7c3f307 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -56,7 +56,7 @@
   "dependencies": {
     "@anthropic-ai/claude-code": "1.0.108",
     "@hono/node-server": "^1.0.0",
-    "@logtape/logtape": "^1.0.0",
+    "@logtape/logtape": "^2.0.2",
     "@logtape/pretty": "^1.0.0",
     "commander": "^14.0.0",
     "hono": "^4.8.5"