diff --git a/Gemfile.lock b/Gemfile.lock
index 2da73709..b69ba6d7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -425,7 +425,7 @@ GEM
     ruby-vips (2.1.2)
       ffi (~> 1.12)
     ruby2_keywords (0.0.4)
-    rubyzip (2.3.0)
+    rubyzip (2.3.1)
     sass-rails (6.0.0)
       sassc-rails (~> 2.1, >= 2.1.1)
     sassc (2.4.0)