diff --git a/README.md b/README.md
index d381870bc..bbbb31005 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ APIs.
 
 ## Install
 
-Be sure `http://rubygems.org/` is in your gem sources.
+Be sure `https://rubygems.org/` is in your gem sources.
 
 For normal client usage, this is sufficient: