diff --git a/apps/extension/package.json b/apps/extension/package.json
index 796a3a2d843..f51da029523 100644
--- a/apps/extension/package.json
+++ b/apps/extension/package.json
@@ -20,7 +20,7 @@
     "@sim/utils": "workspace:*",
     "react": "19.2.4",
     "react-dom": "19.2.4",
-    "zod": "4.3.6"
+    "zod": "4.6.6"
   },
   "devDependencies": {
     "@playwright/test": "1.61.1",
diff --git a/packages/browser-extension-protocol/package.json b/packages/browser-extension-protocol/package.json
index dd746a94c9a..0076e98aafa 100644
--- a/packages/browser-extension-protocol/package.json
+++ b/packages/browser-extension-protocol/package.json
@@ -19,7 +19,7 @@
     "format:check": "biome format ."
   },
   "dependencies": {
-    "zod": "4.3.6"
+    "zod": "4.6.6"
   },
   "devDependencies": {
     "@sim/tsconfig": "workspace:*",