diff --git a/.evergreen/config.yml b/.evergreen/config.yml
index 5deb914db08..b744e63fe42 100644
--- a/.evergreen/config.yml
+++ b/.evergreen/config.yml
@@ -404,14 +404,6 @@ axes:
   - id: "ruby"
     display_name: Ruby Version
     values:
-      - id: "ruby-2.3"
-        display_name: ruby-2.3
-        variables:
-           RVM_RUBY: "ruby-2.3"
-      - id: "ruby-2.4"
-        display_name: ruby-2.4
-        variables:
-           RVM_RUBY: "ruby-2.4"
       - id: "ruby-2.5"
         display_name: ruby-2.5
         variables:
@@ -599,30 +591,6 @@ buildvariants:
   tasks:
     - name: "test"
 
-- matrix_name: "ruby-2.4"
-  matrix_spec:
-    ruby: ["ruby-2.4"]
-    driver: ["current"]
-    topology: ['replica-set', 'sharded-cluster']
-    mongodb-version: ['3.2', '3.4']
-  display_name: "${ruby}, ${driver}, ${rails}, ${mongodb-version}, ${topology}"
-  run_on:
-    - ubuntu1604-small
-  tasks:
-    - name: "test"
-
-- matrix_name: "ruby-2.3"
-  matrix_spec:
-    ruby: ["ruby-2.3"]
-    driver: ["current"]
-    topology: ['replica-set', 'sharded-cluster']
-    mongodb-version: ['2.6', '3.0']
-  display_name: "${ruby}, ${driver}, ${rails}, ${mongodb-version}, ${topology}"
-  run_on:
-    - ubuntu1604-small
-  tasks:
-    - name: "test"
-
 - matrix_name: "driver-upcoming"
   matrix_spec:
     driver: [master, stable]
diff --git a/README.md b/README.md
index b256f362180..5ec30277275 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ Compatibility
 
 Mongoid supports and is tested against:
 
-- MRI 2.3-3.0
+- MRI 2.5-3.0
 - JRuby 9.2
 - MongoDB server 2.6-4.4
 
diff --git a/docs/reference/compatibility.txt b/docs/reference/compatibility.txt
index 3e65e55d4f7..c68665c1054 100644
--- a/docs/reference/compatibility.txt
+++ b/docs/reference/compatibility.txt
@@ -72,9 +72,6 @@ is deprecated.
      - Ruby 2.7
      - Ruby 2.6
      - Ruby 2.5
-     - Ruby 2.4
-     - Ruby 2.3
-     - Ruby 2.2
      - JRuby 9.2
 
    * - 7.3
diff --git a/docs/release-notes/mongoid-7.4.txt b/docs/release-notes/mongoid-7.4.txt
index 74d02f617ea..91ebd695826 100644
--- a/docs/release-notes/mongoid-7.4.txt
+++ b/docs/release-notes/mongoid-7.4.txt
@@ -18,6 +18,13 @@ please consult GitHub releases for detailed release notes and JIRA for
 the complete list of issues fixed in each release, including bug fixes.
 
 
+Ruby Version Support
+--------------------
+
+As of version 7.4, Mongoid supports Ruby 2.5+.
+Support for Ruby 2.4 and earlier has been dropped.
+
+
 ``===`` Operator Matches Ruby Semantics
 ---------------------------------------
 
diff --git a/lib/mongoid.rb b/lib/mongoid.rb
index e21cb06d522..c56f1beb582 100644
--- a/lib/mongoid.rb
+++ b/lib/mongoid.rb
@@ -1,7 +1,5 @@
 # frozen_string_literal: true
 
-require "support/ruby_version"
-
 require "forwardable"
 require "time"
 require "set"
diff --git a/lib/support/ruby_version.rb b/lib/support/ruby_version.rb
deleted file mode 100644
index 95318cd90a9..00000000000
--- a/lib/support/ruby_version.rb
+++ /dev/null
@@ -1,28 +0,0 @@
-# frozen_string_literal: true
-
-# Go ahead and fail if not using Ruby 1.9.3, no since in letting people
-# squarm for answers
-def raise_version_error(message)
-  puts message
-  Rails.logger.info(message) if defined?(Rails) && Rails.logger
-  raise
-end
-
-def invalid_version?
-  RUBY_VERSION =~ /([\d]+)\.([\d]+)\.([\d]+)/
-  major, minor, revision = $1.to_i, $2.to_i, $3.to_i
-  if defined?(JRUBY_VERSION)
-    major <= 1 && minor <= 9 && revision <= 1
-  else
-    major <= 1 && minor <= 9 && revision <= 2
-  end
-end
-
-if invalid_version?
-  message = %{
-Mongoid requires MRI version 1.9.3+ or JRuby 1.6.0+ running in 1.9 mode.
-Your current Ruby version is defined as #{RUBY_VERSION}. Please see:
-http://mongoid.org/en/mongoid/docs/tips.html#ruby for details.
-  }
-  raise_version_error(message)
-end
diff --git a/mongoid.gemspec b/mongoid.gemspec
index a686cca89a5..4efdcb167d7 100644
--- a/mongoid.gemspec
+++ b/mongoid.gemspec
@@ -30,7 +30,7 @@ Gem::Specification.new do |s|
     warn "[#{s.name}] Warning: No private key present, creating unsigned gem."
   end
 
-  s.required_ruby_version     = ">= 2.3"
+  s.required_ruby_version     = ">= 2.5"
   s.required_rubygems_version = ">= 1.3.6"
 
   if RUBY_VERSION.start_with?('2.')
diff --git a/spec/mongoid/association/referenced/has_many/enumerable_spec.rb b/spec/mongoid/association/referenced/has_many/enumerable_spec.rb
index 874061864b0..108c4c24e7c 100644
--- a/spec/mongoid/association/referenced/has_many/enumerable_spec.rb
+++ b/spec/mongoid/association/referenced/has_many/enumerable_spec.rb
@@ -288,7 +288,6 @@
       end
 
       context "when an argument is given" do
-        ruby_version_gte '2.5'
 
         it "returns true when the argument is true" do
           expect(enumerable.any?(Post)).to be true
@@ -300,7 +299,6 @@
       end
 
       context "when both an argument and a block are given" do
-        ruby_version_gte '2.5'
 
         it "gives precedence to the pattern" do
           expect(
@@ -339,7 +337,6 @@
       end
 
       context "when an argument is given" do
-        ruby_version_gte '2.5'
 
         it "returns true when the argument is true" do
           expect(enumerable.any?(Post)).to be true
@@ -351,7 +348,6 @@
       end
 
       context "when both an argument and a block are given" do
-        ruby_version_gte '2.5'
 
         it "gives precedence to the pattern" do
           expect(
diff --git a/spec/mongoid/touchable_spec.rb b/spec/mongoid/touchable_spec.rb
index 967d343a7da..5934da242e7 100644
--- a/spec/mongoid/touchable_spec.rb
+++ b/spec/mongoid/touchable_spec.rb
@@ -312,11 +312,7 @@
         end
 
         let(:frozen_error_cls) do
-          if RUBY_VERSION >= '2.5'
-            FrozenError
-          else
-            RuntimeError
-          end
+          FrozenError
         end
 
         context "when no attribute is provided" do