diff --git a/module.json b/module.json
index 517e578..8654f27 100644
--- a/module.json
+++ b/module.json
@@ -12,7 +12,7 @@
     "maximum": "10"
   },
   "minimumCoreVersion": "9",
-  "compatibleCoreVersion": "10",
+  "compatibleCoreVersion": "9",
   "scripts": [],
   "esmodules": [
     "babele-register.js",