diff --git a/backend/package-lock.json b/backend/package-lock.json
index 31398147..3d0de42d 100644
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -33,6 +33,9 @@
       },
       "engines": {
         "node": ">=20.0.0"
+      },
+      "peerDependencies": {
+        "@anthropic-ai/claude-code": "2.0.74"
       }
     },
     "node_modules/@anthropic-ai/claude-code": {
@@ -2455,9 +2458,9 @@
       }
     },
     "node_modules/flatted": {
-      "version": "3.3.3",
-      "resolved": "https://registry.npmjs.org/flatted/-/flatted-3.3.3.tgz",
-      "integrity": "sha512-GX+ysw4PBCz0PzosHDepZGANEuFCMLrnRTiEy9McGjmkCQYwRq4A/X786G/fjM/+OjsWSU1ZrY5qyARZmO/uwg==",
+      "version": "3.4.2",
+      "resolved": "https://registry.npmjs.org/flatted/-/flatted-3.4.2.tgz",
+      "integrity": "sha512-PjDse7RzhcPkIJwy5t7KPWQSZ9cAbzQXcafsetQoD7sOJRQlGikNbx7yZp2OotDnJyrDcbyRq3Ttb18iYOqkxA==",
       "dev": true,
       "license": "ISC"
     },