diff --git a/.github/workflows/nix.yaml b/.github/workflows/nix.yaml
deleted file mode 100644
index 0d801eb..0000000
--- a/.github/workflows/nix.yaml
+++ /dev/null
@@ -1,13 +0,0 @@
-name: "Nix build"
-on:
-  pull_request:
-  push:
-jobs:
-  tests:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v3
-    - uses: cachix/install-nix-action@v18
-      with:
-        nix_path: nixpkgs=channel:nixos-unstable
-    - run: nix-build
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..88b8319
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,31 @@
+name: Test
+
+on: [push, pull_request]
+
+jobs:
+  RSpec:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby:
+          - "3.0"
+          - "3.1"
+          - "3.2"
+          - "3.3"
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          bundler-cache: true
+      - name: Run tests & publish code coverage
+        uses: paambaati/codeclimate-action@v3.2.0
+        env:
+          BF_MAINNET_PROJECT_ID: ${{ secrets.BF_MAINNET_PROJECT_ID }}
+          BF_TESTNET_PROJECT_ID: ${{ secrets.BF_PREVIEW_PROJECT_ID }}
+          BF_IPFS_PROJECT_ID: ${{ secrets.BF_IPFS_PROJECT_ID }}
+          CC_TEST_REPORTER_ID: 3ae045b12de0f507d7592d877988b90fef72c273bb3a31289abf3dc1becf8439
+        with:
+          coverageCommand: bundle exec rspec
diff --git a/spec/blockfrostruby_spec.rb b/spec/blockfrostruby_spec.rb
index 2ccb22f..1720aeb 100644
--- a/spec/blockfrostruby_spec.rb
+++ b/spec/blockfrostruby_spec.rb
@@ -11,6 +11,10 @@
 
 RSpec.describe Blockfrostruby::CardanoMainNet do
   context 'new() with project_id' do
+    it "foo" do
+      expect(ENV['BF_MAINNET_PROJECT_ID').not_to eq("")
+    end
+
     context 'without any params' do
       subject { Blockfrostruby::CardanoMainNet.new('project_id') }