diff --git a/.github/workflows/test_set_1.yml b/.github/workflows/test_set_1.yml
index 2ed65cc..3dbe1d8 100644
--- a/.github/workflows/test_set_1.yml
+++ b/.github/workflows/test_set_1.yml
@@ -17,7 +17,7 @@ jobs:
     if: github.repository_owner == 'hwdsl2'
     strategy:
       matrix:
-        os_version: ["centos:9s", "centos:8s", "centos:7", "rockylinux:8", "almalinux:9", "almalinux:8", "amazonlinux:2", "oraclelinux:9", "oraclelinux:8", "oraclelinux:7"]
+        os_version: ["centos:9s", "centos:7", "rockylinux:8", "almalinux:9", "almalinux:8", "amazonlinux:2", "oraclelinux:9", "oraclelinux:8", "oraclelinux:7"]
       fail-fast: false
     env:
       OS_VERSION: ${{ matrix.os_version }}
@@ -567,8 +567,6 @@ jobs:
 
           if [ "$OS_VERSION" = "centos:9s" ]; then
             echo "FROM quay.io/centos/centos:stream9" > Dockerfile
-          elif [ "$OS_VERSION" = "centos:8s" ]; then
-            echo "FROM quay.io/centos/centos:stream8" > Dockerfile
           else
             echo "FROM $OS_VERSION" > Dockerfile
           fi