diff --git a/Gemfile.lock b/Gemfile.lock
index 78d4ac504a5..28832acd75e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -86,7 +86,7 @@ GEM
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     rexml (3.2.6)
-    rouge (4.1.3)
+    rouge (4.2.0)
     ruby2_keywords (0.0.5)
     safe_yaml (1.0.5)
     sass (3.4.25)