diff --git a/README.md b/README.md
index c5ac0120d..1b9b19a8f 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ migrate to the latest version.
 Add this line to your application's Gemfile:
 
 ```ruby
-gem 'google-api-client', '~> 0.9'
+gem 'google-api-client', '~> 0.10'
 
 ```