diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 8de12164..95f18ef2 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -4,7 +4,7 @@ on:
     branches: [master, byupdate]
 jobs:
   linux-build:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v2
       - uses: actions-rs/toolchain@v1
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index e374800a..af56831f 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -11,7 +11,7 @@ jobs:
     strategy:
       matrix:
         include:
-          - os: ubuntu-latest
+          - os: ubuntu-20.04
             target_name: i686-unknown-linux-gnu
             artifact_name: libauxmos.so
           - os: windows-latest