diff --git a/Gemfile.lock b/Gemfile.lock
index 3b24323..d669540 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -72,7 +72,7 @@ GEM
       rack (>= 0.9.0)
     binding_of_caller (0.8.0)
       debug_inspector (>= 0.0.1)
-    bourbon (4.3.4)
+    bourbon (5.0.0)
       sass (~> 3.4)
       thor (~> 0.19)
     builder (3.2.3)