diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 83c7847..e46a983 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -15,7 +15,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        osversion: [ubuntu-24.04, ubuntu-22.04, ubuntu-20.04, ubuntu-18.04]
+        osversion: [ubuntu-24.04, ubuntu-22.04, ubuntu-20.04]
     steps:
       - uses: AutoModality/action-clean@v1
       - uses: actions/checkout@v2
@@ -64,7 +64,7 @@ jobs:
     runs-on: [self-hosted, linux, ARM64, dep-builder]
     strategy:
       matrix:
-        osversion: [ubuntu-22.04, ubuntu-24.04]
+        osversion: [ubuntu-20.04, ubuntu-22.04, ubuntu-24.04]
     steps:
       - uses: AutoModality/action-clean@v1
       - uses: actions/checkout@v2