diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index 0ac52811..03811d18 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -9,7 +9,7 @@ on:
 jobs:
 
   build:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-20.04 # explicitly use 20.04, see commit 428c40018f
     timeout-minutes: 30
     strategy:
       fail-fast: false
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index d817aa2d..8133486c 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -7,7 +7,7 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-20.04 # explicitly use 20.04, see commit 428c40018a
+    runs-on: ubuntu-20.04 # explicitly use 20.04, see commit 428c40018f
     timeout-minutes: 30
     strategy:
       fail-fast: false