diff --git a/.github/workflows/prs.yaml b/.github/workflows/prs.yaml
index 13b3da4..0582169 100644
--- a/.github/workflows/prs.yaml
+++ b/.github/workflows/prs.yaml
@@ -10,11 +10,11 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
-    - name: Set up Python 3.9
-      uses: actions/setup-python@v3
+    - uses: actions/checkout@v6
+    - name: Set up Python 3.12
+      uses: actions/setup-python@v6
       with:
-        python-version: 3.9
+        python-version: "3.12"
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 03edd59..88d0988 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -10,11 +10,11 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
-    - name: Set up Python 3.9
-      uses: actions/setup-python@v3
+    - uses: actions/checkout@v6
+    - name: Set up Python 3.12
+      uses: actions/setup-python@v6
       with:
-        python-version: 3.9
+        python-version: "3.12"
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
diff --git a/.gitignore b/.gitignore
index eca971f..53416c5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,3 +12,4 @@ x86_64/
 *.dat
 *nrn.py
 __pycache__
+/_build