diff --git a/.github/workflows/test_functional.yml b/.github/workflows/test_functional.yml
index ea789d1360c..bf258f486d1 100644
--- a/.github/workflows/test_functional.yml
+++ b/.github/workflows/test_functional.yml
@@ -38,47 +38,11 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: ['ubuntu-latest']
-        python-version: ['3.7']
+        os: ['macos-latest']
+        python-version: ['3.9']
         test-base: ['tests/f']
-        chunk: ['1/4', '2/4', '3/4', '4/4']
-        platform: ['_local_background* _local_at*']
-        # NOTE: includes must define ALL of the matrix values
-        include:
-          # latest python
-          - name: 'py-3-latest'
-            os: 'ubuntu-latest'
-            python-version: '3'
-            test-base: 'tests/f'
-            chunk: '1/4'
-            platform: '_local_background*'
-          # tests/k
-          - name: 'flaky'
-            os: 'ubuntu-latest'
-            python-version: '3.7'
-            test-base: 'tests/k'
-            chunk: '1/1'
-            platform: '_local_background* _local_at*'
-          # remote platforms
-          - name: '_remote_background_indep_poll'
-            os: 'ubuntu-latest'
-            python-version: '3.7'
-            test-base: 'tests/f tests/k'
-            chunk: '1/1'
-            platform: '_remote_background_indep_poll _remote_at_indep_poll'
-          - name: '_remote_background_indep_tcp'
-            os: 'ubuntu-latest'
-            test-base: 'tests/f tests/k'
-            python-version: '3.7'
-            chunk: '1/1'
-            platform: '_remote_background_indep_tcp _remote_at_indep_tcp'
-          # macos
-          - name: 'macos 1/4'
-            os: 'macos-latest'
-            python-version: '3.9'
-            test-base: 'tests/f'
-            chunk: '1/4'
-            platform: '_local_background*'
+        chunk: ['1/5', '2/5', '3/5', '4/5']
+        platform: ['_local_background*']
 
     env:
       # Use non-UTC time zone