diff --git a/Gemfile.lock b/Gemfile.lock
index 8f25051..c8a2c8b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -157,7 +157,9 @@ GEM
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
     method_source (1.0.0)
-    mimemagic (0.3.5)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mina (1.2.3)
       open4 (~> 1.3.4)
       rake
@@ -238,7 +240,7 @@ GEM
     rb-fsevent (0.10.3)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rdoc (6.2.1)
+    rdoc (6.3.2)
     redis (4.2.5)
     responders (3.0.0)
       actionpack (>= 5.0)