diff --git a/Gemfile.lock b/Gemfile.lock
index d7bd451..1042ad7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -126,7 +126,7 @@ GEM
       omniauth (~> 1.2)
     omniauth-shopify-oauth2 (1.1.11)
       omniauth-oauth2 (~> 1.2)
-    rack (1.6.8)
+    rack (1.6.13)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails (4.2.7)