diff --git a/Gemfile.lock b/Gemfile.lock
index 0f8e22c..31a4004 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -89,7 +89,9 @@ GEM
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
     method_source (0.9.2)
-    mimemagic (0.3.3)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     minitest (5.11.3)
@@ -181,7 +183,7 @@ GEM
       faraday (~> 0.9)
       jwt (>= 1.5, <= 2.5)
       nokogiri (>= 1.6, < 2.0)
-    tzinfo (1.2.5)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     websocket-driver (0.7.1)
       websocket-extensions (>= 0.1.0)