diff --git a/.github/workflows/unittest-flux.yml b/.github/workflows/unittest-flux.yml
index ec298d9a..14d10bcb 100644
--- a/.github/workflows/unittest-flux.yml
+++ b/.github/workflows/unittest-flux.yml
@@ -16,14 +16,14 @@ jobs:
       matrix:
         include:
         - operating-system: ubuntu-latest
-          python-version: '3.11'
-          label: linux-64-py-3-11-openmpi
+          python-version: '3.12'
+          label: linux-64-py-3-12-openmpi
           prefix: /Users/runner/miniconda3/envs/my-env
           environment-file: .ci_support/environment-openmpi.yml
 
         - operating-system: ubuntu-latest
-          python-version: '3.11'
-          label: linux-64-py-3-11-mich
+          python-version: '3.12'
+          label: linux-64-py-3-12-mpich
           prefix: /usr/share/miniconda3/envs/my-env
           environment-file: .ci_support/environment-mpich.yml
 
diff --git a/.github/workflows/unittest-mpich.yml b/.github/workflows/unittest-mpich.yml
index a9049d17..9e24625f 100644
--- a/.github/workflows/unittest-mpich.yml
+++ b/.github/workflows/unittest-mpich.yml
@@ -16,10 +16,15 @@ jobs:
       matrix:
         include:
         - operating-system: macos-11
-          python-version: '3.11'
-          label: osx-64-py-3-11-mpich
+          python-version: '3.12'
+          label: osx-64-py-3-12-mpich
           prefix: /Users/runner/miniconda3/envs/my-env
 
+        - operating-system: ubuntu-latest
+          python-version: '3.12'
+          label: linux-64-py-3-12-mpich
+          prefix: /usr/share/miniconda3/envs/my-env
+
         - operating-system: ubuntu-latest
           python-version: '3.11'
           label: linux-64-py-3-11-mpich
diff --git a/.github/workflows/unittest-openmpi.yml b/.github/workflows/unittest-openmpi.yml
index 7f37d0e7..ff651757 100644
--- a/.github/workflows/unittest-openmpi.yml
+++ b/.github/workflows/unittest-openmpi.yml
@@ -16,10 +16,15 @@ jobs:
       matrix:
         include:
         - operating-system: macos-11
-          python-version: '3.11'
-          label: osx-64-py-3-11-openmpi
+          python-version: '3.12'
+          label: osx-64-py-3-12-openmpi
           prefix: /Users/runner/miniconda3/envs/my-env
           
+        - operating-system: ubuntu-latest
+          python-version: '3.12'
+          label: linux-64-py-3-12-openmpi
+          prefix: /usr/share/miniconda3/envs/my-env
+        
         - operating-system: ubuntu-latest
           python-version: '3.11'
           label: linux-64-py-3-11-openmpi
diff --git a/.github/workflows/unittest-win.yml b/.github/workflows/unittest-win.yml
index 89320cb6..bf0710e3 100644
--- a/.github/workflows/unittest-win.yml
+++ b/.github/workflows/unittest-win.yml
@@ -15,7 +15,7 @@ jobs:
     strategy:
       matrix:
         operating-system: [windows-latest]
-        python-version: ['3.11']
+        python-version: ['3.12']
 
     steps:
     - uses: actions/checkout@v2