diff --git a/Gemfile.lock b/Gemfile.lock
index 6b5af75..9c5baef 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -78,7 +78,7 @@ GEM
       activesupport (>= 4.1.0)
     haml (4.0.7)
       tilt
-    hashdiff (0.2.3)
+    hashdiff (0.3.0)
     http-cookie (1.0.2)
       domain_name (~> 0.5)
     http_accept_language (2.0.5)