diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 675c9a572..b97eeadff 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,7 +15,7 @@ jobs:
       fail-fast: false
       matrix:
         build_type: [ Debug, Release, RelWithDebInfo ]
-        os: [ windows-latest, ubuntu-latest ]
+        os: [ ubuntu-22.04, windows-2019 ]
 
     name: Build on ${{ matrix.os }} (${{ matrix.build_type }})
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/wheel.yml b/.github/workflows/wheel.yml
index ce0c3e764..17e04f726 100644
--- a/.github/workflows/wheel.yml
+++ b/.github/workflows/wheel.yml
@@ -17,12 +17,12 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ ubuntu-latest, windows-latest ]
+        os: [ ubuntu-22.04, windows-2019 ]
         python-tag: [ "cp39", "cp310", "cp311", "cp312", "cp313" ]
         include:
-          - os: ubuntu-latest
+          - os: ubuntu-22.04
             platform: manylinux_x86_64
-          - os: windows-latest
+          - os: windows-2019
             platform: win_amd64
 
     steps: