diff --git a/Gemfile.lock b/Gemfile.lock
index e5a1854..3faf18b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -247,11 +247,11 @@ GEM
       rspec-support (~> 3.6.0)
     rspec-support (3.6.0)
     ruby_dep (1.5.0)
-    sass (3.5.0)
-      sass-listen (~> 3.0.7)
-    sass-listen (3.0.7)
-      rb-fsevent (>= 0.9.3)
-      rb-inotify (>= 0.9.7)
+    sass (3.5.1)
+      sass-listen (~> 4.0.0)
+    sass-listen (4.0.0)
+      rb-fsevent (~> 0.9, >= 0.9.4)
+      rb-inotify (~> 0.9, >= 0.9.7)
     sass-rails (5.0.6)
       railties (>= 4.0.0, < 6)
       sass (~> 3.1)