diff --git a/Gemfile.lock b/Gemfile.lock
index 7544c345a7..c226c8f5d3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -411,7 +411,7 @@ GEM
       unf_ext
     unf_ext (0.0.7.6)
     unicode-display_width (1.6.0)
-    unicorn (5.5.1)
+    unicorn (5.5.2)
       kgio (~> 2.6)
       raindrops (~> 0.7)
     uniform_notifier (1.13.0)