diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f8d4d585..a5688730 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,20 +14,20 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ 'ubuntu-20.04' ]
+        os: [ 'ubuntu-24.04' ]
         python-version: ['3.8', '3.11', '3.12']
         toxenv: [ 'django42' ]
         # Only run these other workflows on the latest python version we support.
         include:
           - python-version: '3.12'
             toxenv: 'quality'
-            os: 'ubuntu-20.04'
+            os: 'ubuntu-24.04'
           - python-version: '3.12'
             toxenv: 'docs'
-            os: 'ubuntu-20.04'
+            os: 'ubuntu-24.04'
           - python-version: '3.12'
             toxenv: 'pii_check'
-            os: 'ubuntu-20.04'
+            os: 'ubuntu-24.04'
 
     steps:
     - uses: actions/checkout@v4
diff --git a/.github/workflows/publish_pypi.yml b/.github/workflows/publish_pypi.yml
index a47eb5a3..f0a945ed 100644
--- a/.github/workflows/publish_pypi.yml
+++ b/.github/workflows/publish_pypi.yml
@@ -8,7 +8,7 @@ on:
 jobs:
 
    push:
-     runs-on: ubuntu-20.04
+     runs-on: ubuntu-24.04
 
      steps:
        - name: Checkout