diff --git a/Gemfile.lock b/Gemfile.lock
index 258ba99..17e8235 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -180,7 +180,7 @@ GEM
       sqlite3 (~> 1.3)
       thin (~> 1.5.0)
     method_source (0.8.2)
-    mime-types (2.99)
+    mime-types (2.99.1)
     mini_portile2 (2.0.0)
     minitest (5.8.4)
     multi_json (1.11.2)