diff --git a/Gemfile.lock b/Gemfile.lock
index 2000c14d..529cfeff 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -154,7 +154,7 @@ GEM
       netrc (~> 0.7)
     retriable (1.4.1)
     rmagick (2.13.3)
-    safe_yaml (1.0.1)
+    safe_yaml (1.0.4)
     sass (3.3.8)
     screencap (0.1.1)
       phantomjs