diff --git a/Gemfile.lock b/Gemfile.lock
index 073722bd77..e1117ae657 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -233,7 +233,7 @@ GEM
     uglifier (4.2.0)
       execjs (>= 0.3.0, < 3)
     unicode-display_width (1.6.0)
-    unicorn (5.5.1)
+    unicorn (5.5.2)
       kgio (~> 2.6)
       raindrops (~> 0.7)
     webmock (3.7.6)