diff --git a/Gemfile.lock b/Gemfile.lock
index 6576489..198f271 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -43,9 +43,9 @@ GEM
       parser (~> 2.2)
     bcrypt (3.1.10)
     builder (3.2.2)
-    coffee-rails (4.1.0)
+    coffee-rails (4.1.1)
       coffee-script (>= 2.2.0)
-      railties (>= 4.0.0, < 5.0)
+      railties (>= 4.0.0, < 5.1.x)
     coffee-script (2.4.1)
       coffee-script-source
       execjs