diff --git a/Gemfile.lock b/Gemfile.lock
index 68dadc2..07f4fe3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -47,7 +47,7 @@ GEM
       nokogiri (~> 1.4)
       ntlm-http (~> 0.1, >= 0.1.1)
       webrobots (>= 0.0.9, < 0.2)
-    mime-types (2.5)
+    mime-types (2.6.1)
     mini_portile (0.6.2)
     minitest (4.7.5)
     multi_json (1.11.0)
@@ -74,7 +74,7 @@ GEM
       tins (~> 1.0)
     thor (0.19.1)
     thread_safe (0.3.5)
-    tins (1.5.1)
+    tins (1.5.2)
     tumblr_client (0.8.5)
       faraday (~> 0.9.0)
       faraday_middleware (~> 0.9.0)