diff --git a/Gemfile.lock b/Gemfile.lock
index a7c9f98ded4..d4c7f20a057 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1050,7 +1050,8 @@ GEM
       spring (>= 0.9.1)
     spring-commands-rubocop (0.4.0)
       spring (>= 1.0)
-    sprockets (3.7.2)
+    sprockets (3.7.3)
+      base64
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
     sprockets-rails (3.4.2)