diff --git a/Gemfile b/Gemfile
index b64bd92..3ec0892 100644
--- a/Gemfile
+++ b/Gemfile
@@ -20,6 +20,7 @@ end
 # application runtime dependencies
 gem "gem_logger"
 gem "logging"
+gem 'psych'
 gem 'sigdump'
 gem "activesupport", '~> 7.0', '<= 7.0.8'
 gem "clamp"
diff --git a/Gemfile.lock b/Gemfile.lock
index a3debe9..4df2414 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -165,6 +165,7 @@ DEPENDENCIES
   liquid
   logging
   pry
+  psych
   rake
   rspec
   sigdump