diff --git a/Gemfile b/Gemfile
index b2983b9b..37aba7db 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", "~> 6.9.0"
 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..63a34c6e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -39,6 +39,7 @@ GEM
     connection_pool (2.4.1)
     crass (1.0.6)
     creole (0.5.0)
+    date (3.4.1)
     drb (2.2.1)
     expression_parser (0.9.0)
     github-linguist (7.30.0)
@@ -54,33 +55,34 @@ GEM
       concurrent-ruby (~> 1.0)
     logger (1.6.1)
     mini_mime (1.1.5)
-    minitest (5.25.1)
+    minitest (5.25.4)
     mutex_m (0.2.0)
-    nokogiri (1.16.7-aarch64-linux)
+    nokogiri (1.17.2-aarch64-linux)
       racc (~> 1.4)
-    nokogiri (1.16.7-arm-linux)
+    nokogiri (1.17.2-arm-linux)
       racc (~> 1.4)
-    nokogiri (1.16.7-arm64-darwin)
+    nokogiri (1.17.2-arm64-darwin)
       racc (~> 1.4)
-    nokogiri (1.16.7-x86-linux)
+    nokogiri (1.17.2-x86-linux)
       racc (~> 1.4)
-    nokogiri (1.16.7-x86_64-darwin)
+    nokogiri (1.17.2-x86_64-darwin)
       racc (~> 1.4)
-    nokogiri (1.16.7-x86_64-linux)
+    nokogiri (1.17.2-x86_64-linux)
       racc (~> 1.4)
     nokogiri-diff (0.3.0)
       nokogiri (~> 1.5)
       tdiff (~> 0.4)
     org-ruby (0.9.12)
       rubypants (~> 0.2)
-    psych (5.1.2)
+    psych (5.2.1)
+      date
       stringio
     racc (1.8.1)
     rake (13.2.1)
-    rdoc (6.7.0)
+    rdoc (6.9.0)
       psych (>= 4.0.0)
     redcarpet (3.6.0)
-    rexml (3.3.9)
+    rexml (3.4.0)
     ruby-enum (0.9.0)
       i18n
     rubypants (0.7.1)
@@ -89,7 +91,7 @@ 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)
@@ -124,11 +126,11 @@ DEPENDENCIES
   html-pipeline (~> 1.0)
   kramdown
   minitest (~> 5.4, >= 5.4.3)
-  nokogiri (~> 1.16.5)
+  nokogiri (~> 1.17.2)
   nokogiri-diff (~> 0.3.0)
   org-ruby (= 0.9.12)
   rake
-  rdoc (~> 6.7.0)
+  rdoc (~> 6.9.0)
   redcarpet
   rexml
   sanitize (>= 4.6.3)
diff --git a/github-markup.gemspec b/github-markup.gemspec
index ccf5908a..ddd4635f 100644
--- a/github-markup.gemspec
+++ b/github-markup.gemspec
@@ -25,7 +25,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'minitest', '~> 5.4', '>= 5.4.3'
   s.add_development_dependency 'html-pipeline', '~> 1.0'
   s.add_development_dependency 'sanitize', '>= 4.6.3'
-  s.add_development_dependency 'nokogiri', '~> 1.16.5'
+  s.add_development_dependency 'nokogiri', '~> 1.17.2'
   s.add_development_dependency 'nokogiri-diff', '~> 0.3.0'
   s.add_development_dependency "github-linguist", ">= 7.1.3"
 end