diff --git a/plugins/blocks-css/readme.md b/plugins/blocks-css/readme.md
index 5bb5c2ed7..a8ac08756 100644
--- a/plugins/blocks-css/readme.md
+++ b/plugins/blocks-css/readme.md
@@ -2,7 +2,7 @@
 **Contributors:** [themeisle](https://profiles.wordpress.org/themeisle/), [hardeepasrani](https://profiles.wordpress.org/hardeepasrani/)  
 **Tags:** gutenberg, block, css, css editor, blocks css  
 **Requires at least:** 6.2      
-**Tested up to:** 6.5  
+**Tested up to:** 6.6  
 **Requires PHP:** 5.4    
 **Stable tag:** trunk  
 **License:** GPLv3