diff --git a/Gemfile.lock b/Gemfile.lock
index e2de713f..76241879 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -338,7 +338,11 @@ GEM
     ruby_dep (1.5.0)
     ruby_parser (3.9.0)
       sexp_processor (~> 4.1)
-    sass (3.4.25)
+    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)