diff --git a/.github/workflows/1_create_release_pr.yml b/.github/workflows/1_create_release_pr.yml
index 900fe9c3..3ef968d0 100644
--- a/.github/workflows/1_create_release_pr.yml
+++ b/.github/workflows/1_create_release_pr.yml
@@ -38,8 +38,7 @@ jobs:
     - name: Setup Python
       uses: actions/setup-python@v4
       with:
-        # return to 3.x once cylc-flow is compatible with 3.10+ (pyuv)
-        python-version: '3.9'
+        python-version: '3.x'
 
     - name: Create & checkout PR branch
       uses: cylc/release-actions/stage-1/checkout-pr-branch@v1
diff --git a/.github/workflows/2_auto_publish_release.yml b/.github/workflows/2_auto_publish_release.yml
index 5f2d6b21..dd202f11 100644
--- a/.github/workflows/2_auto_publish_release.yml
+++ b/.github/workflows/2_auto_publish_release.yml
@@ -28,8 +28,7 @@ jobs:
     - name: Setup Python
       uses: actions/setup-python@v4
       with:
-        # return to 3.x once cylc-flow is compatible with 3.10+ (pyuv)
-        python-version: '3.9'
+        python-version: '3.x'
 
     - name: Get the version number
       uses: cylc/release-actions/stage-2/get-version-from-pr@v1
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index a29e2e48..fe9a2f60 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -14,7 +14,7 @@ jobs:
     timeout-minutes: 5
     strategy:
       matrix:
-        python-version: ['3.7', '3.8', '3.9']
+        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
     env:
       PYTEST_ADDOPTS: --cov --cov-append --color=yes
     steps: