diff --git a/Gemfile.lock b/Gemfile.lock
index 34f201b..df055dd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -186,7 +186,7 @@ GEM
       rake (>= 0.8.7)
       thor (>= 0.20.3, < 2.0)
     rake (13.0.3)
-    rdoc (6.2.1)
+    rdoc (6.3.2)
     responders (3.0.0)
       actionpack (>= 5.0)
       railties (>= 5.0)