diff --git a/Gemfile.lock b/Gemfile.lock
index 3ee4a3c5c..39d19a3cf 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -166,7 +166,7 @@ GEM
       rack (>= 1.3)
     rainbow (3.1.1)
     rake (13.3.1)
-    rdoc (6.16.0)
+    rdoc (6.16.1)
       erb
       psych (>= 4.0.0)
       tsort