diff --git a/Gemfile.lock b/Gemfile.lock
index ba583fc5..06df8a3a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -103,7 +103,7 @@ GEM
     rake (12.3.0)
     retriable (3.1.1)
     ruby-rc4 (0.1.5)
-    rubyzip (1.2.1)
+    rubyzip (2.3.0)
     safe_yaml (1.0.4)
     sawyer (0.8.1)
       addressable (>= 2.3.5, < 2.6)