diff --git a/README.md b/README.md
index 8d401de..b186b01 100644
--- a/README.md
+++ b/README.md
@@ -194,7 +194,7 @@ your first stop if you are wondering about a more in-depth look at
 OmniAuth, how it works, and how to use it.
 
 ## Supported Ruby Versions
-OmniAuth is tested under 2.1.10, 2.2.6, 2.3.3, 2.4.0, and JRuby.
+OmniAuth is tested under 2.1.10, 2.2.6, 2.3.3, 2.4.0, 2.5.0, and JRuby.
 
 ## Versioning
 This library aims to adhere to [Semantic Versioning 2.0.0][semver]. Violations