diff --git a/Gemfile.lock b/Gemfile.lock
index 54a3540..8f3c13a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -205,7 +205,7 @@ GEM
       zeitwerk (~> 2.6)
     rainbow (3.1.1)
     rake (13.1.0)
-    rdoc (6.6.2)
+    rdoc (6.6.3.1)
       psych (>= 4.0.0)
     redis (5.0.8)
       redis-client (>= 0.17.0)