diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 512c6414c..51f2ff303 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -71,6 +71,18 @@ jobs:
       Python37Mac:
         imageName: 'macos-10.13'
         python.version: '3.7'
+
+      # Python 3.8 is only supported on Mac yet (see #4479)
+
+      # Python38Linux:
+      #   imageName: 'ubuntu-16.04'
+      #   python.version: '3.8'
+      # Python38Windows:
+      #   imageName: 'vs2017-win2016'
+      #   python.version: '3.8'
+      Python38Mac:
+        imageName: 'macos-10.13'
+        python.version: '3.8'
     maxParallel: 4
   pool:
     vmImage: $(imageName)