diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e0369516..7fa3221d 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -11,7 +11,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       # Check on lowest supported python version to catch syntax errors:
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with: { python-version: "3.7" }
       - run: pip install flake8
       - run: flake8
@@ -122,31 +122,31 @@ jobs:
         if: steps.madx-build-cache.outputs.cache-hit != 'true'
         run: .github/build/windows/madx.sh src/MAD-X
 
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with: {python-version: "3.6"}
       - run: .github/build/windows/cpymad.sh src/MAD-X/dist 3.6
 
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with: {python-version: "3.7"}
       - run: .github/build/windows/cpymad.sh src/MAD-X/dist 3.7
 
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with: {python-version: "3.8"}
       - run: .github/build/windows/cpymad.sh src/MAD-X/dist 3.8
 
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with: {python-version: "3.9"}
       - run: .github/build/windows/cpymad.sh src/MAD-X/dist 3.9
 
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with: {python-version: "3.10"}
       - run: .github/build/windows/cpymad.sh src/MAD-X/dist 3.10
 
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with: {python-version: "3.11"}
       - run: .github/build/windows/cpymad.sh src/MAD-X/dist 3.11
 
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with: {python-version: "3.12"}
       - run: .github/build/windows/cpymad.sh src/MAD-X/dist 3.12
 
@@ -224,31 +224,31 @@ jobs:
         if: steps.madx-build-cache.outputs.cache-hit != 'true'
         run: .github/build/macos/madx.sh src/MAD-X ${{ matrix.arch }}
 
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with: { python-version: "3.6" }
       - run: .github/build/macos/cpymad.sh src/MAD-X/dist
 
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with: { python-version: "3.7" }
       - run: .github/build/macos/cpymad.sh src/MAD-X/dist
 
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with: { python-version: "3.8" }
       - run: .github/build/macos/cpymad.sh src/MAD-X/dist
 
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with: { python-version: "3.9" }
       - run: .github/build/macos/cpymad.sh src/MAD-X/dist
 
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with: { python-version: "3.10" }
       - run: .github/build/macos/cpymad.sh src/MAD-X/dist
 
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with: { python-version: "3.11" }
       - run: .github/build/macos/cpymad.sh src/MAD-X/dist
 
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with: { python-version: "3.12" }
       - run: .github/build/macos/cpymad.sh src/MAD-X/dist
 
@@ -288,7 +288,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python }}
 
@@ -325,7 +325,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: '3.9'
       - uses: actions/download-artifact@v3
@@ -357,7 +357,7 @@ jobs:
     if: startsWith(github.ref, 'refs/tags/v')
 
     steps:
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: '3.x'