diff --git a/Gemfile b/Gemfile
index a5b5390e..d1ec9667 100644
--- a/Gemfile
+++ b/Gemfile
@@ -22,7 +22,7 @@ gem "redcarpet"
 gem "rinku", require: "rails_rinku"
 gem "select2-rails"
 gem "sprockets-rails"
-gem "uglifier"
+gem "terser"
 
 group :development do
   gem "better_errors"
diff --git a/Gemfile.lock b/Gemfile.lock
index 7077f6aa..32758218 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -713,12 +713,12 @@ GEM
       sprockets (>= 3.0.0)
     statsd-ruby (1.5.0)
     stringio (3.1.1)
+    terser (1.2.3)
+      execjs (>= 0.3.0, < 3)
     thor (1.3.2)
     timeout (0.4.1)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
-    uglifier (4.2.0)
-      execjs (>= 0.3.0, < 3)
     unicode-display_width (2.5.0)
     uri (0.13.0)
     useragent (0.16.10)
@@ -783,7 +783,7 @@ DEPENDENCIES
   select2-rails
   simplecov
   sprockets-rails
-  uglifier
+  terser
   webmock
 
 BUNDLED WITH