diff --git a/Gemfile.lock b/Gemfile.lock
index 8116283..6709262 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -68,9 +68,9 @@ GEM
       ffi (~> 1.0, >= 1.0.11)
     cliver (0.3.2)
     coderay (1.1.1)
-    coffee-rails (4.2.1)
+    coffee-rails (4.2.2)
       coffee-script (>= 2.2.0)
-      railties (>= 4.0.0, < 5.2.x)
+      railties (>= 4.0.0)
     coffee-script (2.4.1)
       coffee-script-source
       execjs