diff --git a/Gemfile.lock b/Gemfile.lock
index 9aff5cb..710054b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -71,7 +71,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.10.0)
-    concurrent-ruby (1.0.2)
+    concurrent-ruby (1.1.7)
     crass (1.0.6)
     debug_inspector (0.0.2)
     devise (4.7.2)
@@ -183,7 +183,7 @@ GEM
       json (~> 1.7, >= 1.7.7)
       rdoc (~> 4.0)
     spring (1.7.1)
-    sprockets (3.6.0)
+    sprockets (3.7.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
     sprockets-rails (3.0.4)