diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 366be77..23b0fbe 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -42,7 +42,7 @@ jobs:
       fail-fast: false
       matrix:
         arch: [x64, arm64]
-    runs-on: ubuntu-20.04 # < compile with ancient Ubuntu
+    runs-on: ubuntu-22.04 # < compile with oldest supported Ubuntu
     steps:
       - name: Setup QEMU
         if: ${{ matrix.arch == 'arm64' }}
@@ -113,7 +113,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-20.04, ubuntu-22.04, ubuntu-24.04]
+        os: [ubuntu-22.04, ubuntu-24.04]
         arch: [x64, arm64]
         node-version: [18, 20, 22, 23]
     runs-on: ${{ matrix.os }}