diff --git a/.github/workflows/daily.yaml b/.github/workflows/daily.yaml
index 06a6041427..938cc62e34 100644
--- a/.github/workflows/daily.yaml
+++ b/.github/workflows/daily.yaml
@@ -13,7 +13,7 @@ jobs:
       matrix:
         runner: [mlu370-m8]
         mlu_ops_version : [0.11.0]
-        cntoolkit_version : [3.7.0]
+        cntoolkit_version : [3.8.4]
         cnnl_version: [1.21.1]
     runs-on: ${{matrix.runner}}
     steps:
diff --git a/.github/workflows/mluops_all_system_ci.yaml b/.github/workflows/mluops_all_system_ci.yaml
index 80dd389257..4baf83be6a 100644
--- a/.github/workflows/mluops_all_system_ci.yaml
+++ b/.github/workflows/mluops_all_system_ci.yaml
@@ -18,7 +18,7 @@ jobs:
       matrix:
         runner: [mlu370-m8]
         mlu_ops_version : [0.11.0]
-        cntoolkit_version : [3.7.0]
+        cntoolkit_version : [3.8.4]
         cnnl_version: [1.21.1]
         os: [ubuntu18.04, ubuntu20.04, centos7, centos8, kylin10]
     runs-on: ${{matrix.runner}}