diff --git a/package-lock.json b/package-lock.json
index 1165b751..ed986a69 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,17 +1,17 @@
 {
   "name": "@modelcontextprotocol/sdk",
-  "version": "1.9.0",
+  "version": "1.11.3",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@modelcontextprotocol/sdk",
-      "version": "1.9.0",
+      "version": "1.11.3",
       "license": "MIT",
       "dependencies": {
         "content-type": "^1.0.5",
         "cors": "^2.8.5",
-        "cross-spawn": "^7.0.3",
+        "cross-spawn": "^7.0.5",
         "eventsource": "^3.0.2",
         "express": "^5.0.1",
         "express-rate-limit": "^7.5.0",
diff --git a/package.json b/package.json
index f078e8f6..233fd9e1 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@modelcontextprotocol/sdk",
-  "version": "1.11.2",
+  "version": "1.11.3",
   "description": "Model Context Protocol implementation for TypeScript",
   "license": "MIT",
   "author": "Anthropic, PBC (https://anthropic.com)",
@@ -48,7 +48,7 @@
   "dependencies": {
     "content-type": "^1.0.5",
     "cors": "^2.8.5",
-    "cross-spawn": "^7.0.3",
+    "cross-spawn": "^7.0.5",
     "eventsource": "^3.0.2",
     "express": "^5.0.1",
     "express-rate-limit": "^7.5.0",