diff --git a/Gemfile.lock b/Gemfile.lock
index 08e51f7..bf2f3fb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -71,7 +71,9 @@ GEM
     mime-types (3.2.2)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2019.0331)
-    mimemagic (0.3.3)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.1)
     mini_portile2 (2.3.0)
     minitest (5.11.3)
@@ -129,7 +131,7 @@ GEM
     thor (0.20.3)
     thread_safe (0.3.6)
     to_regexp (0.2.1)
-    tzinfo (1.2.5)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     websocket-driver (0.7.1)
       websocket-extensions (>= 0.1.0)