diff --git a/lib/compat.php b/lib/compat.php
index e41ed2bfbd5e3a..d0d58858065993 100644
--- a/lib/compat.php
+++ b/lib/compat.php
@@ -175,7 +175,7 @@ function gutenberg_override_reusable_block_post_type_labels() {
 /**
  * Update allowed inline style attributes list.
  *
- * Note: This should be removed when the minimum required WP version is >= 5.8.
+ * Note: This should be removed when the minimum required WP version is >= 5.9.
  *
  * @param string[] $attrs Array of allowed CSS attributes.
  * @return string[] CSS attributes.