diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 44f69a1..3f35941 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -59,31 +59,37 @@ jobs:
       matrix:
         py_3.7_32:
           MB_PYTHON_VERSION: "3.7"
+          MB_ML_VER: "2014"
           PLAT: "i686"
           NP_BUILD_DEP: "numpy==1.17.3"
           # pandas 1.4 requires py3.8+, remove this job on 1.4 release
           NIGHTLY_BUILD: "false"
         py_3.7_64:
           MB_PYTHON_VERSION: "3.7"
+          MB_ML_VER: "2014"
           NP_BUILD_DEP: "numpy==1.17.3"
           # pandas 1.4 requires py3.8+, remove this job on 1.4 release
           NIGHTLY_BUILD: "false"
         py_3.8_32:
           MB_PYTHON_VERSION: "3.8"
+          MB_ML_VER: "2014"
           PLAT: "i686"
           NP_BUILD_DEP: "numpy==1.17.3"
           NIGHTLY_BUILD: "true"
         py_3.8_64:
           MB_PYTHON_VERSION: "3.8"
+          MB_ML_VER: "2014"
           NP_BUILD_DEP: "numpy==1.17.3"
           NIGHTLY_BUILD: "true"
         py_3.9_32:
           MB_PYTHON_VERSION: "3.9"
+          MB_ML_VER: "2014"
           PLAT: "i686"
           NP_BUILD_DEP: "numpy==1.19.3"
           NIGHTLY_BUILD: "true"
         py_3.9_64:
           MB_PYTHON_VERSION: "3.9"
+          MB_ML_VER: "2014"
           NP_BUILD_DEP: "numpy==1.19.3"
           NIGHTLY_BUILD: "true"