diff --git a/.github/workflows/publish_prymer.yml b/.github/workflows/publish_prymer.yml
index 22aa125..7d4f637 100644
--- a/.github/workflows/publish_prymer.yml
+++ b/.github/workflows/publish_prymer.yml
@@ -9,7 +9,7 @@ env:
 
 jobs:
   on-main-branch-check:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     outputs:
       on_main: ${{ steps.contains_tag.outputs.retval }}
     steps:
@@ -37,7 +37,7 @@ jobs:
   build-sdist:
     name: build source distribution
     needs: tests
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4
         with:
@@ -72,7 +72,7 @@ jobs:
           path: dist/*.tar.gz
 
   publish-to-pypi:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     needs: [build-wheels, build-sdist]
     environment: pypi
     permissions:
@@ -91,7 +91,7 @@ jobs:
           verbose: true
 
   make-changelog:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     needs: publish-to-pypi
     outputs:
       release_body: ${{ steps.git-cliff.outputs.content }}
@@ -112,7 +112,7 @@ jobs:
           GITHUB_REPO: ${{ github.repository }}
 
   make-github-release:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     environment: github
     permissions:
       contents: write
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 24a3c0e..6fa1c7d 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -13,7 +13,7 @@ env:
 
 jobs:
   Tests:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     strategy:
       matrix:
         PYTHON_VERSION: ["3.11", "3.12"]
diff --git a/.github/workflows/wheels.yml b/.github/workflows/wheels.yml
index c81da25..1cb9703 100644
--- a/.github/workflows/wheels.yml
+++ b/.github/workflows/wheels.yml
@@ -8,7 +8,7 @@ on:
 jobs:
   build-wheels:
     name: Build wheels for ${{ matrix.python }}
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     strategy:
       matrix:
         python: ["3.11", "3.12"]