diff --git a/README.md b/README.md
index 3145b05..5ed881c 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ which is missing in the default Drupal admin themes.
 REQUIREMENTS
 ------------
 
-This theme requires Drupal core >= 8.8.0 that includes the Claro theme.
+This theme requires Drupal core >= 8.9.0 that includes the Claro theme.
 
 
 INSTALLATION
diff --git a/gin.info.yml b/gin.info.yml
index 7708256..f529eda 100755
--- a/gin.info.yml
+++ b/gin.info.yml
@@ -2,7 +2,7 @@ name: Gin
 type: theme
 base theme: claro
 description: 'For a better Content Editor Experience on top of Claro'
-core_version_requirement: ^8.8 || ^9
+core_version_requirement: ^8.9 || ^9
 
 # Dependency on module > Drupal 8.9
 # dependencies: