diff --git a/Gemfile.lock b/Gemfile.lock
old mode 100755
new mode 100644
index 757743e97..41b0d5800
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -106,7 +106,7 @@ GEM
       middleware
       thor
       thread_safe
-    rack (1.6.4)
+    rack (1.6.13)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails (4.2.7.1)