diff --git a/Gemfile.lock b/Gemfile.lock
index 8be3f5b..c93c74e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -170,7 +170,7 @@ GEM
       thor (~> 1.0, >= 1.2.2)
       zeitwerk (~> 2.6)
     rake (13.1.0)
-    rdoc (6.6.2)
+    rdoc (6.6.3.1)
       psych (>= 4.0.0)
     reline (0.4.2)
       io-console (~> 0.5)