diff --git a/.github/workflows/ci_dbt_core_testing.yml b/.github/workflows/ci_dbt_core_testing.yml
index 085bdb0d..d0daa56c 100644
--- a/.github/workflows/ci_dbt_core_testing.yml
+++ b/.github/workflows/ci_dbt_core_testing.yml
@@ -102,12 +102,11 @@ jobs:
         with:
           python-version: "3.11"
 
-      - name: Install python dependencies
+      - name: "Install python tools & dependencies"
         run: |
           python -m pip install --user --upgrade pip
           python -m pip --version
-          python -m pip install tox
-          tox --version
+          python -m pip install -r dev-requirements.txt -r editable-requirements.txt
 
       - name: "Update the version of dbt-common"
         run: |
@@ -116,10 +115,8 @@ jobs:
       - name: "Check installed versions"
         run: pip freeze
 
-      - name: Run tox - unit tests
-        env:
-          TOXENV: "unit"
-        run: tox
+      - name: Run unit tests
+        run: python -m pytest tests/unit
 
   dbt-core-integration-metadata:
     name: integration test metadata generation
@@ -172,16 +169,10 @@ jobs:
         split-group: ${{ fromJson(needs.dbt-core-integration-metadata.outputs.split-groups) }}
         include: ${{ fromJson(needs.dbt-core-integration-metadata.outputs.include) }}
     env:
-      TOXENV: integration
       DBT_INVOCATION_ENV: github-actions
       DBT_TEST_USER_1: dbt_test_user_1
       DBT_TEST_USER_2: dbt_test_user_2
       DBT_TEST_USER_3: dbt_test_user_3
-      # DD_CIVISIBILITY_AGENTLESS_ENABLED: true
-      # DD_API_KEY: ${{ secrets.DATADOG_API_KEY }}  TODO: set this up
-      # DD_SITE: datadoghq.com
-      # DD_ENV: ci
-      DD_SERVICE: ${{ github.event.repository.name }}
 
     steps:
       - name: Check out the repository
@@ -207,12 +198,11 @@ jobs:
         if: runner.os == 'Windows'
         uses: ./.github/actions/setup-postgres-windows
 
-      - name: Install python tools
+      - name: "Install python tools & dependencies"
         run: |
           python -m pip install --user --upgrade pip
           python -m pip --version
-          python -m pip install tox
-          tox --version
+          python -m pip install -r dev-requirements.txt -r editable-requirements.txt
 
       - name: "Update the version of dbt-common"
         run: |
@@ -222,7 +212,10 @@ jobs:
         run: pip freeze
 
       - name: Run tests
-        run: tox -- --ddtrace
+        run: |
+          python -m pytest {posargs} tests/functional -k "not tests/functional/graph_selection"
+          python -m pytest {posargs} tests/functional/graph_selection
+          python -m pytest {posargs} tests/adapter
         env:
           PYTEST_ADDOPTS: ${{ format('--splits {0} --group {1}', env.PYTHON_INTEGRATION_TEST_WORKERS, matrix.split-group) }}