diff --git a/services/shared/llm-sdk/package.json b/services/shared/llm-sdk/package.json
old mode 100755
new mode 100644
index af7184236..37d274c6b
--- a/services/shared/llm-sdk/package.json
+++ b/services/shared/llm-sdk/package.json
@@ -71,7 +71,7 @@
     "@aws-sdk/credential-providers": "^3.1024.0",
     "@smithy/fetch-http-handler": "^5.3.15",
     "@smithy/protocol-http": "^4.0.0",
-    "@smithy/signature-v4": "^4.0.0",
+    "@smithy/signature-v4": "^5.6.0",
     "@smithy/types": "^3.0.0",
     "@types/node": "^20.19.39",
     "google-auth-library": "^9.0.0",