diff --git a/.ruby-version b/.ruby-version
index 74500ce..b532f3d 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.7.4
\ No newline at end of file
+3.1.4
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
index d057913..a434a6c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # Ruby image
-FROM ruby:2.7.4
+FROM ruby:3.1.4
 
 ENV DEBIAN_FRONTEND noninteractive
 
diff --git a/Gemfile b/Gemfile
index 20db3a2..fd0f220 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,7 +3,7 @@ source 'https://rubygems.org'
 File.read('.ruby-version').chomp.split('-')[1] { |f| "ruby '#{f}'"}
 
 gem 'activeresource', '>= 5.1.1'
-gem 'ffi', '1.9.24'
+gem 'ffi', '1.15.5'
 gem 'flipper'
 gem 'georuby', '~> 2.5.2'
 gem 'jquery-rails', '~> 4.4.0'
@@ -25,7 +25,7 @@ group :assets do
   gem 'execjs', '~> 2.7.0'
   gem 'sass-rails', '~> 5.0.7'
   gem 'sass', '~> 3.5.5'
-  gem 'therubyracer', '~> 0.12.3'
+  gem 'mini_racer'
   gem 'uglifier', '~> 4.1.6'
 end
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 6df8fe4..dfcf809 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -148,7 +148,7 @@ GEM
     et-orbi (1.2.7)
       tzinfo
     execjs (2.7.0)
-    ffi (1.9.24)
+    ffi (1.15.5)
     flipper (0.25.0)
     fugit (1.5.3)
       et-orbi (~> 1, >= 1.2.7)
@@ -167,7 +167,7 @@ GEM
       thor (>= 0.14, < 2.0)
     json (2.6.2)
     kgio (2.11.4)
-    libv8 (3.16.14.19)
+    libv8-node (16.10.0.0)
     loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
@@ -187,6 +187,8 @@ GEM
       rake
     mini_mime (1.1.2)
     mini_portile2 (2.8.1)
+    mini_racer (0.6.3)
+      libv8-node (~> 16.10.0.0)
     minitest (5.18.0)
     multi_test (0.1.2)
     net-imap (0.3.4)
@@ -259,7 +261,6 @@ GEM
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     redis (4.7.1)
-    ref (2.0.0)
     regexp_parser (2.5.0)
     responders (3.1.0)
       actionpack (>= 5.2)
@@ -334,9 +335,6 @@ GEM
       sprockets (>= 3.0.0)
     sys-uname (1.2.2)
       ffi (~> 1.1)
-    therubyracer (0.12.3)
-      libv8 (~> 3.16.14.15)
-      ref
     thor (1.2.1)
     tilt (2.0.11)
     timeout (0.3.2)
@@ -376,12 +374,13 @@ DEPENDENCIES
   coffee-rails (~> 4.2.2)
   cucumber-rails
   execjs (~> 2.7.0)
-  ffi (= 1.9.24)
+  ffi (= 1.15.5)
   flipper
   georuby (~> 2.5.2)
   jquery-rails (~> 4.4.0)
   loofah (>= 2.3.1)
   mimemagic (~> 0.3.7)
+  mini_racer
   nokogiri (>= 1.13.9)
   pry-rails
   rack (~> 2.0)
@@ -401,11 +400,10 @@ DEPENDENCIES
   sass (~> 3.5.5)
   sass-rails (~> 5.0.7)
   simplecov
-  therubyracer (~> 0.12.3)
   uglifier (~> 4.1.6)
   unicorn
   vcr
   webmock
 
 BUNDLED WITH
-   2.1.4
+   2.4.10
diff --git a/README.md b/README.md
index d98f9d4..fa1caf5 100644
--- a/README.md
+++ b/README.md
@@ -32,11 +32,11 @@ See public/licenses.txt
 
 ## Installation
 
-* Ruby 2.7.4
+* Ruby 3.1.4
 * A Ruby version manager such as [RVM](https://rvm.io/) or [rbenv](https://github.com/rbenv/rbenv) is strongly recommended.
 
 ### Initial setup
-Once the repository is cloned locally and Ruby 2.5.3 is installed, you must install the dependencies.
+Once the repository is cloned locally and Ruby 3.1.4 is installed, you must install the dependencies.
 If you don't have the [bundler](https://bundler.io/) gem already installed, execute the command below in the project root directory:
 
     gem install bundler   
@@ -50,14 +50,13 @@ Install all the gem dependencies:
     bundle install    
 
 In some cases, depending on your operating system type and/or version, the above command will fail while trying to install
-the libv8 and therubyracer gems.  While there might be lots of causes for the errors and lots of
+the libv8 gem.  While there might be lots of causes for the errors and lots of
 solutions to fix the errors, we found that on some versions of OS X, you can overcome the problem by trying to use the existing
 operating system version of the libv8 library, rather than trying to build a new one during the normal gem install.
 We found the following workarounds to the _**bundle install**_ failures due to libv8:
 
     $ brew install v8@3.15
     $ bundle config build.libv8 --with-system-v8
-    $ bundle config build.therubyracer --with-v8-dir=$(brew --prefix v8@3.15)
     $ bundle install
 
 Local problems with mimemagic on MACOSX?
@@ -147,11 +146,9 @@ that the application needs in order to run.  A sample _config/application.yml_ f
 
     development:
         <<: *current
-        CMR_ECHO_SYSTEM_TOKEN: "CMR system token with tagging permissions in the CMR environment that development uses"
 
     production:
         <<: *current
-        CMR_ECHO_SYSTEM_TOKEN: "CMR system token with tagging permissions in the CMR PROD environment"
 
     test: &test
         # test values are already defaulted to enable CI automated Rspec and cucumber tests