diff --git a/Gemfile.lock b/Gemfile.lock
index 1738436..14ca0dd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -30,20 +30,22 @@ GEM
     i18n (0.8.4)
     minitest (5.10.2)
     multi_xml (0.6.0)
-    mustermann (1.0.0)
-    rack (2.0.3)
-    rack-protection (2.0.0)
+    mustermann (2.0.2)
+      ruby2_keywords (~> 0.0.1)
+    rack (2.2.4)
+    rack-protection (2.2.3)
       rack
+    ruby2_keywords (0.0.5)
     shopify_api (4.9.0)
       activeresource (>= 3.0.0)
       rack
-    sinatra (2.0.0)
-      mustermann (~> 1.0)
-      rack (~> 2.0)
-      rack-protection (= 2.0.0)
+    sinatra (2.2.3)
+      mustermann (~> 2.0)
+      rack (~> 2.2)
+      rack-protection (= 2.2.3)
       tilt (~> 2.0)
     thread_safe (0.3.6)
-    tilt (2.0.7)
+    tilt (2.0.11)
     tzinfo (1.2.3)
       thread_safe (~> 0.1)