diff --git a/README.md b/README.md
index d6d427b..1cc0c4a 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 **Donate link:** https://notiz.blog/donate/  
 **Tags:** OStatus, fediverse, activitypub, activitystream  
 **Requires at least:** 4.7  
-**Tested up to:** 5.2.2  
+**Tested up to:** 5.3  
 **Stable tag:** 0.8.3  
 **Requires PHP:** 5.6  
 **License:** MIT  
diff --git a/readme.txt b/readme.txt
index 51b7c32..8eafb31 100644
--- a/readme.txt
+++ b/readme.txt
@@ -3,7 +3,7 @@ Contributors: pfefferle
 Donate link: https://notiz.blog/donate/
 Tags: OStatus, fediverse, activitypub, activitystream
 Requires at least: 4.7
-Tested up to: 5.2.2
+Tested up to: 5.3
 Stable tag: 0.8.3
 Requires PHP: 5.6
 License: MIT