diff --git a/Gemfile.lock b/Gemfile.lock
index 35e5daf3..de994d1e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -102,7 +102,7 @@ GEM
       mimemagic (>= 0.3.0)
       mini_mime (>= 0.1.3)
     chunky_png (1.4.0)
-    colorize (0.8.1)
+    colorize (1.1.0)
     concurrent-ruby (1.2.2)
     connection_pool (2.4.1)
     crass (1.0.6)