diff --git a/Gemfile.lock b/Gemfile.lock
index b4d4ccb6..632fa834 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -149,7 +149,7 @@ GEM
       unicode (>= 0.4.4.5)
     css_parser (1.21.1)
       addressable
-    csv (3.3.4)
+    csv (3.3.5)
     date (3.4.1)
     debug (1.10.0)
       irb (~> 1.10)