diff --git a/spec/jsonapi_app/Gemfile.lock b/spec/jsonapi_app/Gemfile.lock
index c05f9f8..b13c328 100644
--- a/spec/jsonapi_app/Gemfile.lock
+++ b/spec/jsonapi_app/Gemfile.lock
@@ -40,7 +40,7 @@ GEM
       tzinfo (~> 1.1)
     arel (7.1.4)
     builder (3.2.3)
-    concurrent-ruby (1.0.5)
+    concurrent-ruby (1.1.5)
     crass (1.0.5)
     database_cleaner (1.6.1)
     erubis (2.7.0)
@@ -101,7 +101,7 @@ GEM
     rb-fsevent (0.10.2)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
-    sprockets (3.7.1)
+    sprockets (4.0.0)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
     sprockets-rails (3.2.0)