diff --git a/readme.txt b/readme.txt
index d53e804..b80b72d 100644
--- a/readme.txt
+++ b/readme.txt
@@ -2,7 +2,7 @@
 Contributors: michaelryanmcneill, willnorris, mitchoyoshitaka, jrchamp, dericcrago, bshelton229, Alhrath, dandalpiaz
 Tags: shibboleth, authentication, login, saml
 Requires at least: 4.0
-Tested up to: 5.5
+Tested up to: 5.8
 Requires PHP: 5.6
 Stable tag: 2.3