diff --git a/Gemfile.lock b/Gemfile.lock
index 08c1f93b3..7629a14f8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -498,7 +498,7 @@ GEM
       ffi (~> 1.0)
     rb-readline (0.5.5)
     rdiscount (2.2.0.2)
-    rdoc (6.2.1)
+    rdoc (6.3.2)
     recaptcha (2.3.0)
       json
     regexp_parser (0.5.0)