diff --git a/lib/client-api/package.json b/lib/client-api/package.json
index c98086221673..008a0220588a 100644
--- a/lib/client-api/package.json
+++ b/lib/client-api/package.json
@@ -22,7 +22,7 @@
   },
   "dependencies": {
     "@storybook/addons": "5.2.0-beta.18",
-    "@storybook/channel-postmessage": "5.2.0-beta.18",
+    "@storybook/channel-postmessage": "5.2.6",
     "@storybook/channels": "5.2.0-beta.18",
     "@storybook/client-logger": "5.2.0-beta.18",
     "@storybook/core-events": "5.2.0-beta.18",