diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index ee4f669..9b0e49b 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -11,7 +11,7 @@ on:
 jobs:
   build:
 
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04.4
     permissions:
       contents: read
       packages: write