diff --git a/Gemfile b/Gemfile
index 60920bee..afd3d617 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", "~> 6.13.1"
+gem "rdoc", "~> 6.14.1"
 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 9ee4b029..ab6da275 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -33,7 +33,7 @@ GEM
     benchmark (0.4.0)
     bigdecimal (3.1.9)
     builder (3.3.0)
-    cgi (0.4.2)
+    cgi (0.5.0)
     charlock_holmes (0.7.9)
     concurrent-ruby (1.3.5)
     connection_pool (2.5.0)
@@ -41,8 +41,10 @@ GEM
     creole (0.5.0)
     date (3.4.1)
     drb (2.2.1)
+    erb (4.0.4)
+      cgi (>= 0.3.3)
     expression_parser (0.9.0)
-    github-linguist (9.1.0)
+    github-linguist (9.2.0)
       cgi
       charlock_holmes (~> 0.7.7)
       mini_mime (~> 1.0)
@@ -76,12 +78,13 @@ GEM
       tdiff (~> 0.4)
     org-ruby (0.9.12)
       rubypants (~> 0.2)
-    psych (5.2.3)
+    psych (5.2.6)
       date
       stringio
     racc (1.8.1)
-    rake (13.2.1)
-    rdoc (6.13.1)
+    rake (13.3.0)
+    rdoc (6.14.1)
+      erb
       psych (>= 4.0.0)
     redcarpet (3.6.1)
     rexml (3.4.1)
@@ -93,7 +96,7 @@ GEM
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
     securerandom (0.3.2)
-    stringio (3.1.6)
+    stringio (3.1.7)
     tdiff (0.4.0)
     twitter-text (1.14.7)
       unf (~> 0.1.0)
@@ -132,7 +135,7 @@ DEPENDENCIES
   nokogiri-diff (~> 0.3.0)
   org-ruby (= 0.9.12)
   rake
-  rdoc (~> 6.13.1)
+  rdoc (~> 6.14.1)
   redcarpet
   rexml
   sanitize (>= 4.6.3)
diff --git a/github-markup.gemspec b/github-markup.gemspec
index 4329a901..70b0375c 100644
--- a/github-markup.gemspec
+++ b/github-markup.gemspec
@@ -20,7 +20,7 @@ Gem::Specification.new do |s|
   s.test_files    = s.files.grep(%r{^(test|spec|features)/})
   s.require_paths = %w[lib]
 
-  s.add_development_dependency 'rake', '~> 12'
+  s.add_development_dependency 'rake', '~> 13'
   s.add_development_dependency 'activesupport', '~> 7.1.5'
   s.add_development_dependency 'minitest', '~> 5.4', '>= 5.4.3'
   s.add_development_dependency 'html-pipeline', '~> 1.0'