diff --git a/Gemfile.lock b/Gemfile.lock
old mode 100755
new mode 100644
index 851b120..541dc8d
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -69,7 +69,7 @@ GEM
       capistrano (~> 3.1)
       sshkit (~> 1.3)
     colorize (0.8.1)
-    concurrent-ruby (1.0.2)
+    concurrent-ruby (1.1.6)
     database_cleaner (1.5.3)
     diff-lcs (1.2.5)
     erubis (2.7.0)
@@ -118,7 +118,7 @@ GEM
       pkg-config (~> 1.1.7)
     pg (0.18.4)
     pkg-config (1.1.7)
-    rack (2.0.1)
+    rack (2.2.2)
     rack-cors (0.4.0)
     rack-test (0.6.3)
       rack (>= 1.0)
@@ -171,7 +171,7 @@ GEM
     spring-watcher-listen (2.0.0)
       listen (>= 2.7, < 4.0)
       spring (~> 1.2)
-    sprockets (3.6.3)
+    sprockets (4.0.0)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
     sprockets-rails (3.1.1)