diff --git a/Gemfile.lock b/Gemfile.lock
index b3b0273..ed19b40 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -49,7 +49,7 @@ GEM
     rack (2.2.2)
     rake (13.0.1)
     rchardet (1.8.0)
-    rdoc (6.2.1)
+    rdoc (6.3.2)
     rubyzip (2.2.0)
     semver2 (3.4.2)
     thread_safe (0.3.6)