diff --git a/.github/workflows/debian.yml b/.github/workflows/debian.yml
index 3ca8b4df5..9328f467d 100644
--- a/.github/workflows/debian.yml
+++ b/.github/workflows/debian.yml
@@ -17,7 +17,7 @@ jobs:
   build:
     name: Build Kernel
     runs-on: ubuntu-latest
-    container: debian:sid
+    container: ubuntu:20.04
     steps:
     - name: Checkout code
       uses: actions/checkout@v2
diff --git a/.github/workflows/debian_lts.yml b/.github/workflows/debian_lts.yml
index 60c1082fa..0c48c5eb0 100644
--- a/.github/workflows/debian_lts.yml
+++ b/.github/workflows/debian_lts.yml
@@ -17,7 +17,7 @@ jobs:
   build:
     name: Build Kernel
     runs-on: ubuntu-latest
-    container: debian:sid
+    container: ubuntu:20.04
     steps:
     - name: Checkout code
       uses: actions/checkout@v2