diff --git a/Gemfile.lock b/Gemfile.lock
index f150013..230f0c1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -244,7 +244,7 @@ GEM
       rubocop-rails
     ruby-progressbar (1.13.0)
     ruby-rc4 (0.1.5)
-    securerandom (0.3.1)
+    securerandom (0.4.0)
     sprockets (4.2.1)
       concurrent-ruby (~> 1.0)
       rack (>= 2.2.4, < 4)