diff --git a/lib/authorize_net/api/constants.yml b/lib/authorize_net/api/constants.yml
index 9511ff7..fa3a762 100644
--- a/lib/authorize_net/api/constants.yml
+++ b/lib/authorize_net/api/constants.yml
@@ -1 +1 @@
-clientId: sdk-ruby-1.9.0.3
+clientId: sdk-ruby-1.9.1