diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index fa2e54e..2e7417f 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -23,7 +23,7 @@ jobs:
   pool:
     vmImage: 'ubuntu-20.04'
   variables:
-    python.version: '3.8'
+    python.version: '3.9'
     CC: gcc-9
     CXX: g++-9
   steps: