diff --git a/docker/reddit/Gemfile.lock b/docker/reddit/Gemfile.lock
index f62baeb..f14e356 100644
--- a/docker/reddit/Gemfile.lock
+++ b/docker/reddit/Gemfile.lock
@@ -25,7 +25,7 @@ GEM
       temple (>= 0.8.0)
       tilt
     i18n (0.8.6)
-    json (2.1.0)
+    json (2.3.0)
     mongo (2.4.3)
       bson (>= 4.2.1, < 5.0.0)
     mustermann (1.0.2)
@@ -36,6 +36,8 @@ GEM
     rack (2.0.5)
     rack-protection (2.0.2)
       rack
+    rack-test (1.1.0)
+      rack (>= 1.0, < 3)
     rake (12.0.0)
     sinatra (2.0.2)
       mustermann (~> 1.0)
@@ -62,6 +64,7 @@ DEPENDENCIES
   json
   mongo
   puma
+  rack-test
   sinatra (~> 2.0.1)
 
 BUNDLED WITH