diff --git a/Gemfile.lock b/Gemfile.lock
index 8f7ef5d6..ae118542 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -473,11 +473,12 @@ GEM
     rubyzip (1.2.1)
     safe_yaml (1.0.4)
     sass (3.2.19)
-    sass-rails (4.0.4)
-      railties (>= 4.0.0, < 5.0)
-      sass (~> 3.2.2)
-      sprockets (~> 2.8, < 2.12)
-      sprockets-rails (~> 2.0)
+    sass-rails (5.0.6)
+      railties (>= 4.0.0, < 6)
+      sass (~> 3.1)
+      sprockets (>= 2.8, < 4.0)
+      sprockets-rails (>= 2.0, < 4.0)
+      tilt (>= 1.1, < 3)
     selectize-rails (0.12.4)
     shellany (0.0.1)
     shoulda-matchers (2.8.0)