diff --git a/Gemfile.lock b/Gemfile.lock
index 1926d68..d5ddc5f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -14,7 +14,7 @@ GEM
       execjs
     coffee-script-source (1.11.1)
     colorator (1.1.0)
-    commonmarker (0.23.5)
+    commonmarker (0.23.6)
     concurrent-ruby (1.1.10)
     cssminify2 (2.0.1)
     dnsruby (1.61.9)