diff --git a/Gemfile.lock b/Gemfile.lock
index 4dd02d8..d0fba32 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -37,7 +37,7 @@ GEM
     pry (0.11.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    rack (2.0.3)
+    rack (2.0.7)
     redis (4.0.1)
     redis-namespace (1.6.0)
       redis (>= 3.0.4)