diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index a386c9ca2..a6a4d86a0 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -811,6 +811,10 @@ stages:
         displayName: 'Install .net core 2.1'
         inputs:
           version: 2.1.815
+      - task: UseDotNet@2
+        displayName: 'Install .net core 3.1'
+        inputs:
+          version: 3.1.413    
       - task: UseDotNet@2
         displayName: 'Install .net core 5.0'
         inputs: