diff --git a/.github/workflows/pr-test.yml b/.github/workflows/pr-test.yml
index cebecd044..01cf68690 100644
--- a/.github/workflows/pr-test.yml
+++ b/.github/workflows/pr-test.yml
@@ -1182,7 +1182,6 @@ jobs:
     timeout-minutes: 240
     env:
       SGLANG_CI_RDMA_ALL_DEVICES: "mlx5_1,mlx5_2,mlx5_3,mlx5_4"
-      CU_VERSION: cu129
     steps:
       - name: Checkout code
         uses: actions/checkout@v4