diff --git a/.github/workflows/check.yaml b/.github/workflows/check.yaml
index 8b34aa3..d0e25c2 100644
--- a/.github/workflows/check.yaml
+++ b/.github/workflows/check.yaml
@@ -26,7 +26,7 @@ jobs:
       fail-fast: false
       matrix:
         python-version: ['3.8', '3.10']
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v4
       with:
@@ -53,7 +53,7 @@ jobs:
       fail-fast: false
       matrix:
         python-version: ['3.8', '3.10']
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v4
       with:
@@ -82,8 +82,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        runs-on: [[self-hosted, jammy, X64, large], [Ubuntu_ARM64_4C_16G_01]]
-        test-command: ['if [ "$(uname -m)" = "aarch64" ]; then echo "skipping func tests on arm64"; else tox -e func; fi']
+        runs-on: [[self-hosted, jammy, X64, large]]
+        test-command: ['tox -e func']
         juju-channel: ["3.4/stable"]
     steps:
 
@@ -100,7 +100,7 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@v5
         with:
-          python-version: "3.10"
+          python-version: "3.12"
 
       - name: Setup Juju environment
         uses: charmed-kubernetes/actions-operator@main
diff --git a/.gitignore b/.gitignore
index 042b19d..bba1aa1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,6 +17,7 @@ reports/
 **/report/
 htmlcov/
 .mypy_cache
+.unit-state.db
 
 # python virtual environments (for local dev)
 .venv