diff --git a/Gemfile.lock b/Gemfile.lock
old mode 100755
new mode 100644
index ca627a5..500449a
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -109,7 +109,7 @@ GEM
     naught (1.0.0)
     pg (0.17.1)
     polyglot (0.3.5)
-    rack (1.5.2)
+    rack (1.5.5)
     rack-test (0.6.2)
       rack (>= 1.0)
     rails (4.1.1)