[docs] fix commonmarker security issue
diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index d2a0939d71a2..0534d934144c 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -14,7 +14,7 @@ GEM
       execjs
     coffee-script-source (1.11.1)
     colorator (1.1.0)
-    commonmarker (0.17.13)
+    commonmarker (0.23.4)
       ruby-enum (~> 0.5)
     concurrent-ruby (1.1.10)
     dnsruby (1.61.9)

reference: https://github.com/github/cmark-gfm/security/advisories/GHSA-mc3g-88wq-6f4x