diff --git a/Gemfile.lock b/Gemfile.lock
index ad50d90..94ea411 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    faraday-http-cache (0.5.2)
+    faraday-http-cache (0.5.4)
       faraday (~> 0.8)
 
 GEM
@@ -34,7 +34,7 @@ GEM
     json (1.8.1)
     minitest (5.4.1)
     multipart-post (2.0.0)
-    rack (1.5.2)
+    rack (1.6.13)
     rack-protection (1.5.3)
       rack
     rake (10.3.2)