diff --git a/Gemfile b/Gemfile
index bed56dae3..039daac15 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,7 +6,7 @@ gem 'rails', '7.0.3'
 gem 'jsbundling-rails'
 
 gem 'sass-rails', '~> 5.0'
-gem 'uglifier', '>= 1.0.3'
+gem 'terser' #ugilifer replacent
 # See https://github.com/rails/execjs#readme for more supported runtimes
 # gem 'therubyracer', platforms: :ruby
 # gem 'duktape'
diff --git a/config/environments/appliance.rb b/config/environments/appliance.rb
index 00bb200de..1d024a0dc 100644
--- a/config/environments/appliance.rb
+++ b/config/environments/appliance.rb
@@ -21,7 +21,7 @@
   # config.action_dispatch.rack_cache = true
 
   # Compress JavaScripts and CSS.
-  config.assets.js_compressor = Uglifier.new(harmony: true)
+  config.assets.js_compressor = :terser
   # config.assets.css_compressor = :sass
 
   # Do not fallback to assets pipeline if a precompiled asset is missed.
diff --git a/config/environments/production.rb b/config/environments/production.rb
index eb9fb9901..33168bd78 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -25,7 +25,7 @@
   config.public_file_server.enabled = ENV["RAILS_SERVE_STATIC_FILES"].present?
 
   # Compress JavaScripts
-  config.assets.js_compressor = Uglifier.new(harmony: true)
+  config.assets.js_compressor = :terser
 
   # Compress CSS using a preprocessor.
   # config.assets.css_compressor = :sass
diff --git a/config/environments/staging.rb b/config/environments/staging.rb
index d99703f49..03955a248 100644
--- a/config/environments/staging.rb
+++ b/config/environments/staging.rb
@@ -21,7 +21,7 @@
   # config.action_dispatch.rack_cache = true
 
   # Compress JavaScripts and CSS.
-  config.assets.js_compressor = Uglifier.new(harmony: true)
+  config.assets.js_compressor = :terser
   # config.assets.css_compressor = :sass
 
   # Do not fallback to assets pipeline if a precompiled asset is missed.