diff --git a/.gitignore b/.gitignore
index b04a8c8..8eb3b06 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 /.bundle/
 /.yardoc
+/Gemfile.lock
 /_yardoc/
 /coverage/
 /doc/