diff --git a/Gemfile.lock b/Gemfile.lock
index 5c030de..8ec2463 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -209,8 +209,7 @@ GEM
     simplecov-html (0.10.2)
     simplecov-rcov (0.2.3)
       simplecov (>= 0.4.1)
-    spring (2.0.2)
-      activesupport (>= 4.2)
+    spring (2.1.0)
     spring-commands-rspec (1.0.4)
       spring (>= 0.9.1)
     spring-watcher-listen (2.0.1)