diff --git a/.azurepipelines/Ubuntu-PatchCheck.yml b/.azurepipelines/Ubuntu-PatchCheck.yml
index d55c238592..1bc28176b6 100644
--- a/.azurepipelines/Ubuntu-PatchCheck.yml
+++ b/.azurepipelines/Ubuntu-PatchCheck.yml
@@ -27,7 +27,7 @@ steps:
 
 - task: UsePythonVersion@0
   inputs:
-    versionSpec: '3.9.x'
+    versionSpec: '3.8.x'
     architecture: 'x64'
 
 - script: |
diff --git a/.azurepipelines/templates/platform-build-run-steps.yml b/.azurepipelines/templates/platform-build-run-steps.yml
index 36cdce9bf8..97e7faa266 100644
--- a/.azurepipelines/templates/platform-build-run-steps.yml
+++ b/.azurepipelines/templates/platform-build-run-steps.yml
@@ -42,7 +42,7 @@ steps:
 
 - task: UsePythonVersion@0
   inputs:
-    versionSpec: "3.9.x"
+    versionSpec: "3.8.x"
     architecture: "x64"
 
 - script: pip install -r pip-requirements.txt --upgrade
diff --git a/.azurepipelines/templates/pr-gate-steps.yml b/.azurepipelines/templates/pr-gate-steps.yml
index 6601c24742..70c19a4621 100644
--- a/.azurepipelines/templates/pr-gate-steps.yml
+++ b/.azurepipelines/templates/pr-gate-steps.yml
@@ -20,7 +20,7 @@ steps:
 
 - task: UsePythonVersion@0
   inputs:
-    versionSpec: '3.9.x'
+    versionSpec: '3.8.x'
     architecture: 'x64'
 
 - script: pip install -r pip-requirements.txt --upgrade