diff --git a/Gemfile b/Gemfile
index 6c466d709..c2d319073 100644
--- a/Gemfile
+++ b/Gemfile
@@ -12,7 +12,7 @@ gem 'elasticsearch', '~> 7.2.0'
 gem 'sass-rails', '~> 5.0.7'
 gem 'sprockets-rails', '~> 3.2.1'
 
-gem 'uglifier', '~> 2.7.2'
+gem 'uglifier', '~> 4.1.17'
 gem 'coffee-rails', '~> 4.2.2'
 gem "autoprefixer-rails"
 gem "exception_notification", '~> 4.3.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index bef8a4066..6b4f11a59 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -903,7 +903,7 @@ GEM
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
-    json (2.2.0)
+    json (2.3.0)
     kramdown (2.1.0)
     levenshtein (0.2.2)
     loofah (2.4.0)
@@ -1079,9 +1079,8 @@ GEM
       tilt (>= 1.4, < 3)
     tzinfo (1.2.6)
       thread_safe (~> 0.1)
-    uglifier (2.7.2)
-      execjs (>= 0.3.0)
-      json (>= 1.8.0)
+    uglifier (4.1.20)
+      execjs (>= 0.3.0, < 3)
     version (1.0.0)
     vuejs-rails (2.3.2)
     warden (1.2.8)
@@ -1163,7 +1162,7 @@ DEPENDENCIES
   timecop (~> 0.7.1)
   tinymce-rails (~> 4.3.2)
   turnout (~> 2.5.0)
-  uglifier (~> 2.7.2)
+  uglifier (~> 4.1.17)
   vuejs-rails (~> 2.3.2)
   webmock (~> 1.22.0)
   webpacker (~> 4.0.2)