diff --git a/Gemfile.lock b/Gemfile.lock
index c718d56..b5d5877 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -147,7 +147,7 @@ GEM
       rake (>= 0.8.7)
       thor (>= 0.19.0, < 2.0)
     rake (13.0.0)
-    rdoc (6.2.0)
+    rdoc (6.3.2)
     responders (3.0.0)
       actionpack (>= 5.0)
       railties (>= 5.0)