diff --git a/Gemfile.lock b/Gemfile.lock
index 3c9df4cdb..1b48855f0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -6,8 +6,8 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.6.0)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     asciidoctor (2.0.6)
     autoprefixer-rails (9.5.1)
       execjs
@@ -72,7 +72,9 @@ GEM
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
     mercenary (0.3.6)
-    mimemagic (0.3.3)
+    mimemagic (0.4.3)
+      nokogiri (~> 1)
+      rake
     mini_portile2 (2.4.0)
     minitest (5.11.3)
     multi_json (1.13.1)
@@ -80,7 +82,7 @@ GEM
       mini_portile2 (~> 2.4.0)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (3.0.3)
+    public_suffix (5.0.0)
     pygments.rb (1.2.1)
       multi_json (>= 1.0.0)
     rake (12.3.2)