diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c3c0784d..2ea48bcf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,13 +10,23 @@ jobs:
 
     runs-on: ubuntu-latest
 
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby_version:
+          - 2.7
+          - 2.6
+          - 2.5
+          - 2.4
+          - jruby
+
     steps:
     - uses: actions/checkout@v1
 
-    - name: Set up Ruby 2.6
-      uses: actions/setup-ruby@v1
+    - name: Set up Ruby ${{ matrix.ruby_version }}
+      uses: eregon/use-ruby-action@v1
       with:
-        ruby-version: 2.6.x
+        ruby-version: ${{ matrix.ruby_version }}
 
     - name: Set up Python 3.7
       uses: actions/setup-python@v1
@@ -28,11 +38,16 @@ jobs:
         sudo apt install build-essential libsqlite3-dev
 
     - name: Install matplotlib
+      if: matrix.ruby_version != 'jruby'
       run: |
         pip install --user matplotlib
 
     - name: Build and test with Rake
       run: |
         gem install bundler
-        bundle install --jobs 4 --retry 3
+        if [ "${{ matrix.ruby_version }}" = "jruby" ]; then
+          bundle install --jobs 4 --retry 3 --without matplotlib nmatrix numo
+        else
+          bundle install --jobs 4 --retry 3
+        fi
         bundle exec rake
diff --git a/Gemfile b/Gemfile
index afa35d58..ceaf22d4 100644
--- a/Gemfile
+++ b/Gemfile
@@ -16,3 +16,9 @@ end
 group :numo do
   gem "numo-narray"
 end
+
+if defined?(JRUBY_VERSION)
+  gem "activerecord-jdbcsqlite3-adapter"
+else
+  gem "sqlite3"
+end
diff --git a/charty.gemspec b/charty.gemspec
index d4985ec1..023f2656 100644
--- a/charty.gemspec
+++ b/charty.gemspec
@@ -35,5 +35,4 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "red-datasets", ">= 0.0.9"
   spec.add_development_dependency "daru"
   spec.add_development_dependency "activerecord"
-  spec.add_development_dependency "sqlite3"
 end
diff --git a/test/table/activerecord_test.rb b/test/table/activerecord_test.rb
index aa26ee89..a7695025 100644
--- a/test/table/activerecord_test.rb
+++ b/test/table/activerecord_test.rb
@@ -18,6 +18,7 @@ def change
   end
 
   def setup
+    adapter_name = defined?(JRUBY_VERSION) ? "jdbcsqlite3" : "sqlite3"
     TestRecord.establish_connection(adapter: "sqlite3", database: ":memory:")
     TestRecordMigration.new.exec_migration(TestRecord.connection, :up)
     TestRecord.create(id: 1, name: "foo",  rate: 0.1)