diff --git a/solutions/mcp-chat-client/package-lock.json b/solutions/mcp-chat-client/package-lock.json
index 5bdaa2e..90b5f3c 100644
--- a/solutions/mcp-chat-client/package-lock.json
+++ b/solutions/mcp-chat-client/package-lock.json
@@ -16,7 +16,7 @@
         "@vercel/edge": "^1.2.2",
         "antd": "^5.27.1",
         "hono": "^4.9.2",
-        "lodash": "^4.17.21",
+        "lodash": "^4.18.1",
         "openai": "^5.16.0",
         "openid-client": "^6.6.4",
         "react": "^19.0.0",
@@ -3239,9 +3239,9 @@
       }
     },
     "node_modules/lodash": {
-      "version": "4.17.21",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
-      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==",
+      "version": "4.18.1",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.18.1.tgz",
+      "integrity": "sha512-dMInicTPVE8d1e5otfwmmjlxkZoUpiVLwyeTdUsi/Caj/gfzzblBcCE5sRHV/AsjuCmxWrte2TNGSYuCeCq+0Q==",
       "license": "MIT"
     },
     "node_modules/longest-streak": {
diff --git a/solutions/mcp-chat-client/package.json b/solutions/mcp-chat-client/package.json
index 4843736..0f31cc0 100644
--- a/solutions/mcp-chat-client/package.json
+++ b/solutions/mcp-chat-client/package.json
@@ -18,7 +18,7 @@
     "@vercel/edge": "^1.2.2",
     "antd": "^5.27.1",
     "hono": "^4.9.2",
-    "lodash": "^4.17.21",
+    "lodash": "^4.18.1",
     "openai": "^5.16.0",
     "openid-client": "^6.6.4",
     "react": "^19.0.0",