diff --git a/Gemfile b/Gemfile
index f5734954..49e66a78 100644
--- a/Gemfile
+++ b/Gemfile
@@ -53,6 +53,7 @@ gem 'hiredis'
 gem 'image_processing'
 gem 'icalendar'
 gem 'inline_svg'
+gem 'safe_yaml', source: 'https://gems.sutty.nl'
 gem 'jekyll', '~> 4.2'
 gem 'jekyll-data', source: 'https://gems.sutty.nl'
 gem 'jekyll-commonmark'
diff --git a/Gemfile.lock b/Gemfile.lock
index ac0d7755..2ce4a6a3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -454,7 +454,7 @@ GEM
     ruby_dep (1.5.0)
     rubyzip (2.3.0)
     rugged (1.1.0)
-    safe_yaml (1.0.5)
+    safe_yaml (1.0.6)
     safely_block (0.3.0)
       errbase (>= 0.1.1)
     sassc (2.4.0)
@@ -626,6 +626,7 @@ DEPENDENCIES
   rubocop-rails
   rubyzip
   rugged
+  safe_yaml!
   sassc-rails
   selenium-webdriver
   share-to-fediverse-jekyll-theme