diff --git a/Gemfile.lock b/Gemfile.lock
index cc48e80..71ccf84 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -98,7 +98,7 @@ GEM
     ruby2_keywords (0.0.2)
     rufus-scheduler (3.6.0)
       fugit (~> 1.1, >= 1.1.6)
-    sanitize (5.1.0)
+    sanitize (5.2.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.8.0)
       nokogumbo (~> 2.0)