diff --git a/spec/jsonapi_app/Gemfile.lock b/spec/jsonapi_app/Gemfile.lock
index c05f9f8..af54ead 100644
--- a/spec/jsonapi_app/Gemfile.lock
+++ b/spec/jsonapi_app/Gemfile.lock
@@ -71,7 +71,7 @@ GEM
       mini_portile2 (~> 2.4.0)
     pg (0.21.0)
     puma (3.12.2)
-    rack (2.0.7)
+    rack (2.0.8)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails (5.0.5)