diff --git a/.github/workflows/build-system.yml b/.github/workflows/build-system.yml
index cb5a58f..b8a86c6 100644
--- a/.github/workflows/build-system.yml
+++ b/.github/workflows/build-system.yml
@@ -16,7 +16,7 @@ jobs:
       id-token: write
     strategy:
       matrix:
-        version: [38,39]
+        version: [39]
       fail-fast: false
 
     steps: