diff --git a/Gemfile.lock b/Gemfile.lock
index ca47c0b..6c61964 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -10,9 +10,9 @@ GEM
   remote: https://rubygems.org/
   specs:
     ast (2.4.3)
-    commonmarker (2.8.2)
+    commonmarker (2.8.3)
       rb_sys (~> 0.9)
-    commonmarker (2.8.2-x86_64-linux)
+    commonmarker (2.8.3-x86_64-linux)
     docopt (0.6.1)
     drb (2.2.3)
     json (2.20.0)