diff --git a/Gemfile b/Gemfile
index b2983b9b..a3ce3bc7 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,7 +7,7 @@ gem "RedCloth"
 # using a tag version here because 0.18.3 was not published by the author to encourage users to upgrade.
 # however we want to bump up to this version since this has a security patch
 gem "commonmarker", git: "https://github.com/gjtorikian/commonmarker.git", tag: "v0.18.3"
-gem "rdoc", "~> 6.7.0"
+gem "rdoc", "~> 6.8.1"
 gem "org-ruby", "0.9.12"
 gem "creole", "~>0.5.0"
 gem "wikicloth", "=0.8.3"
diff --git a/Gemfile.lock b/Gemfile.lock
index 5912d3b1..3cb32a44 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -54,7 +54,7 @@ GEM
       concurrent-ruby (~> 1.0)
     logger (1.6.1)
     mini_mime (1.1.5)
-    minitest (5.25.1)
+    minitest (5.25.2)
     mutex_m (0.2.0)
     nokogiri (1.16.7-aarch64-linux)
       racc (~> 1.4)
@@ -73,11 +73,11 @@ GEM
       tdiff (~> 0.4)
     org-ruby (0.9.12)
       rubypants (~> 0.2)
-    psych (5.1.2)
+    psych (5.2.0)
       stringio
     racc (1.8.1)
     rake (13.2.1)
-    rdoc (6.7.0)
+    rdoc (6.8.1)
       psych (>= 4.0.0)
     redcarpet (3.6.0)
     rexml (3.3.9)
@@ -89,7 +89,7 @@ GEM
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
     securerandom (0.3.1)
-    stringio (3.1.1)
+    stringio (3.1.2)
     tdiff (0.4.0)
     twitter-text (1.14.7)
       unf (~> 0.1.0)
@@ -128,7 +128,7 @@ DEPENDENCIES
   nokogiri-diff (~> 0.3.0)
   org-ruby (= 0.9.12)
   rake
-  rdoc (~> 6.7.0)
+  rdoc (~> 6.8.1)
   redcarpet
   rexml
   sanitize (>= 4.6.3)