diff --git a/tools/ci_build/github/azure-pipelines/stages/nuget-cuda-packaging-stage.yml b/tools/ci_build/github/azure-pipelines/stages/nuget-cuda-packaging-stage.yml
index 6e60cccb60a83..cb7cfc363add5 100644
--- a/tools/ci_build/github/azure-pipelines/stages/nuget-cuda-packaging-stage.yml
+++ b/tools/ci_build/github/azure-pipelines/stages/nuget-cuda-packaging-stage.yml
@@ -127,6 +127,11 @@ stages:
             DisplayName: 'ESRP - Sign C# dlls'
             DoEsrp: ${{ parameters.DoEsrp }}
 
+        - task: UsePythonVersion@0
+          displayName: 'Use Python'
+          inputs:
+            versionSpec: 3.8
+
         - task: MSBuild@1
           displayName: Update projects.assets.json with combined list of all target frameworks
           inputs:
diff --git a/tools/ci_build/github/azure-pipelines/templates/ondevice-training-cpu-packaging-pipeline.yml b/tools/ci_build/github/azure-pipelines/templates/ondevice-training-cpu-packaging-pipeline.yml
index 5ab452be2bc1f..b20c062ebf314 100644
--- a/tools/ci_build/github/azure-pipelines/templates/ondevice-training-cpu-packaging-pipeline.yml
+++ b/tools/ci_build/github/azure-pipelines/templates/ondevice-training-cpu-packaging-pipeline.yml
@@ -228,6 +228,11 @@ stages:
           DisplayName: 'ESRP - Sign C# dlls'
           DoEsrp: ${{ parameters.DoEsrp }}
 
+    - task: UsePythonVersion@0
+      displayName: 'Use Python'
+      inputs:
+        versionSpec: 3.8
+
     - task: MSBuild@1
       displayName: 'Build Nuget Packages'
       inputs: