diff --git a/src/index.tsx b/src/index.tsx
index e308995..2e1a619 100644
--- a/src/index.tsx
+++ b/src/index.tsx
@@ -68,7 +68,7 @@ const Blocks = ({
     ...renderers,
   };
 
-  const hasBlockId = data.version.includes('2.21');
+  const hasBlockId = data.version?.includes('2.21');
 
   return (
     <>