diff --git a/Gemfile b/Gemfile
index 45dad142..8492b758 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,7 +2,7 @@ source 'https://rubygems.org'
 
 gem "licensee", ">= 9.9.0"
 gem "github-linguist", ">= 7.12.1"
-gem "commonmarker", "~> 0.23.7"
+gem "commonmarker", "~> 0.23.9"
 gem "RedCloth", "~> 4.3"
 gem "rdoc", "6.3.1"
 gem "org-ruby", "~> 0.9.12"
diff --git a/Gemfile.lock b/Gemfile.lock
index 2293b512..eb63a878 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,7 +7,7 @@ GEM
     asciidoctor (2.0.12)
     builder (3.2.4)
     charlock_holmes (0.7.7)
-    commonmarker (0.23.7)
+    commonmarker (0.23.9)
     creole (0.5.0)
     dotenv (2.7.6)
     escape_utils (1.2.1)
@@ -73,7 +73,7 @@ PLATFORMS
 DEPENDENCIES
   RedCloth (~> 4.3)
   asciidoctor (~> 2.0)
-  commonmarker (~> 0.23.7)
+  commonmarker (~> 0.23.9)
   creole (~> 0.5.0)
   github-linguist (>= 7.12.1)
   github-markup (~> 4.0)