diff --git a/Gemfile.lock b/Gemfile.lock
index 089519b..b73aca8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -273,7 +273,7 @@ GEM
       ffi (~> 1.0)
     rexml (3.4.4)
     rouge (3.30.0)
-    rubyzip (2.4.1)
+    rubyzip (3.4.0)
     safe_yaml (1.0.5)
     sass (3.7.4)
       sass-listen (~> 4.0.0)