diff --git a/Gemfile.lock b/Gemfile.lock
index 645116fb69..04f6af7f63 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -546,7 +546,7 @@ GEM
     rswag-ui (2.4.0)
       actionpack (>= 3.1, < 7.0)
       railties (>= 3.1, < 7.0)
-    rubocop (1.20.0)
+    rubocop (1.21.0)
       parallel (~> 1.10)
       parser (>= 3.0.0.0)
       rainbow (>= 2.2.2, < 4.0)