diff --git a/Gemfile b/Gemfile
index 6f53f302..be71d104 100644
--- a/Gemfile
+++ b/Gemfile
@@ -22,7 +22,7 @@ gem 'redis', '~> 4.8', require: %w[redis redis/connection/hiredis]
 gem 'redis-namespace'
 gem 'rubyzip', require: 'zip'
 gem 'sassc-rails'
-gem 'uglifier'
+gem 'terser'
 
 # Temporarily fix for ruby 3.1
 gem 'net-imap', require: false
diff --git a/Gemfile.lock b/Gemfile.lock
index 1c9d98d2..4315be8c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -353,6 +353,8 @@ GEM
     sshkit (1.21.5)
       net-scp (>= 1.1.2)
       net-ssh (>= 2.8.0)
+    terser (1.1.18)
+      execjs (>= 0.3.0, < 3)
     thor (1.2.2)
     tilt (2.2.0)
     timeout (0.4.0)
@@ -362,8 +364,6 @@ GEM
       railties (>= 6.0.0)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
-    uglifier (4.2.0)
-      execjs (>= 0.3.0, < 3)
     unicode-display_width (2.4.2)
     uniform_notifier (1.16.0)
     websocket (1.2.9)
@@ -425,8 +425,8 @@ DEPENDENCIES
   sassc-rails
   selenium-webdriver
   spring
+  terser
   tzinfo-data
-  uglifier
 
 RUBY VERSION
    ruby 3.1.2p20
diff --git a/config/environments/production.rb b/config/environments/production.rb
index de4eb364..7aceefff 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -26,7 +26,7 @@
 
   # Compress CSS using a preprocessor.
   # config.assets.css_compressor = :sass
-  config.assets.js_compressor = Uglifier.new harmony: true
+  config.assets.js_compressor = :terser
 
   # Do not fallback to assets pipeline if a precompiled asset is missed.
   config.assets.compile = false