diff --git a/package-lock.json b/package-lock.json
index 7620088..44973d0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,17 +1,17 @@
 {
   "name": "reactome-mcp",
-  "version": "1.0.0",
+  "version": "1.3.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "reactome-mcp",
-      "version": "1.0.0",
+      "version": "1.3.1",
       "license": "Apache-2.0",
       "dependencies": {
         "@modelcontextprotocol/sdk": "^1.12.0",
         "neo4j-driver": "^5.28.3",
-        "zod": "^3.25.0"
+        "zod": "^4.3.6"
       },
       "bin": {
         "reactome-mcp": "dist/index.js"
@@ -1218,6 +1218,16 @@
         "node": ">= 0.4"
       }
     },
+    "node_modules/hono": {
+      "version": "4.12.14",
+      "resolved": "https://registry.npmjs.org/hono/-/hono-4.12.14.tgz",
+      "integrity": "sha512-am5zfg3yu6sqn5yjKBNqhnTX7Cv+m00ox+7jbaKkrLMRJ4rAdldd1xPd/JzbBWspqaQv6RSTrgFN95EsfhC+7w==",
+      "license": "MIT",
+      "peer": true,
+      "engines": {
+        "node": ">=16.9.0"
+      }
+    },
     "node_modules/http-errors": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-2.0.1.tgz",
@@ -2514,9 +2524,9 @@
       "license": "ISC"
     },
     "node_modules/zod": {
-      "version": "3.25.76",
-      "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",
-      "integrity": "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==",
+      "version": "4.3.6",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.3.6.tgz",
+      "integrity": "sha512-rftlrkhHZOcjDwkGlnUtZZkvaPHCsDATp4pGpuOOMDaTdDDXF91wuVDJoWoPsKX/3YPQ5fHuF3STjcYyKr+Qhg==",
       "license": "MIT",
       "funding": {
         "url": "https://github.com/sponsors/colinhacks"
diff --git a/package.json b/package.json
index bd27d2a..0888e46 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
   "dependencies": {
     "@modelcontextprotocol/sdk": "^1.12.0",
     "neo4j-driver": "^5.28.3",
-    "zod": "^3.25.0"
+    "zod": "^4.3.6"
   },
   "devDependencies": {
     "@types/node": "^22.0.0",