diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 3abdfc0..1005a13 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -5,7 +5,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
+        os: [ubuntu-latest]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
@@ -17,3 +17,5 @@ jobs:
           bundler-cache: true
       - run: bundle exec rake compile
       - run: bundle exec rake test
+      - run: sudo apt-get update && sudo apt-get install valgrind
+      - run: bundle exec rake test:valgrind
diff --git a/Gemfile b/Gemfile
index 78e3274..b197916 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,3 +5,4 @@ gemspec
 gem "rake"
 gem "rake-compiler"
 gem "minitest", ">= 5"
+gem "ruby_memcheck"
diff --git a/Rakefile b/Rakefile
index 8766054..9e7fd26 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,12 +1,18 @@
 require "bundler/gem_tasks"
 require "rake/testtask"
 require "rake/extensiontask"
+require "ruby_memcheck"
 
 task default: :test
-Rake::TestTask.new do |t|
+test_config = lambda do |t|
   t.libs << "test"
   t.pattern = "test/**/*_test.rb"
 end
+Rake::TestTask.new(:test, &test_config)
+
+namespace :test do
+  RubyMemcheck::TestTask.new(:valgrind, &test_config)
+end
 
 Rake::ExtensionTask.new("midas") do |ext|
   ext.name = "ext"