diff --git a/Gemfile.lock b/Gemfile.lock
index 5c4e898f..db54f366 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -494,7 +494,7 @@ GEM
     sorted_set (1.0.3)
       rbtree
       set (~> 1.0)
-    spring (3.1.1)
+    spring (4.0.0)
     sprockets (4.0.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)