diff --git a/Gemfile.lock b/Gemfile.lock
index bcac7cbd2a..204c7e5f42 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -126,7 +126,7 @@ GEM
       rack (>= 1.3)
     rainbow (3.1.1)
     rake (13.0.6)
-    rdoc (6.6.1)
+    rdoc (6.6.2)
       psych (>= 4.0.0)
     regexp_parser (2.8.2)
     reline (0.4.1)