diff --git a/Gemfile b/Gemfile
index 2968eee2b..2f1aa412e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -59,7 +59,7 @@ gem 'httplog', '~> 1.5.0'
 gem 'idn-ruby', require: 'idn'
 gem 'kaminari', '~> 1.2'
 gem 'link_header', '~> 0.0'
-gem 'mime-types', '~> 3.3.1', require: 'mime/types/columnar'
+gem 'mime-types', '~> 3.4.0', require: 'mime/types/columnar'
 gem 'nokogiri', '~> 1.12'
 gem 'nsa', '~> 0.2'
 gem 'oj', '~> 3.13'
diff --git a/Gemfile.lock b/Gemfile.lock
index f6a41a33f..8417d3c69 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -356,9 +356,9 @@ GEM
     microformats (4.3.1)
       json (~> 2.2)
       nokogiri (~> 1.10)
-    mime-types (3.3.1)
+    mime-types (3.4.0)
       mime-types-data (~> 3.2015)
-    mime-types-data (3.2021.0901)
+    mime-types-data (3.2021.1115)
     mini_mime (1.1.2)
     mini_portile2 (2.6.1)
     minitest (5.14.4)
@@ -726,7 +726,7 @@ DEPENDENCIES
   mario-redis-lock (~> 1.2)
   memory_profiler
   microformats (~> 4.2)
-  mime-types (~> 3.3.1)
+  mime-types (~> 3.4.0)
   net-ldap (~> 0.17)
   nokogiri (~> 1.12)
   nsa (~> 0.2)