diff --git a/.appveyor.yml b/.appveyor.yml
index 28b8c0b7..9c5dab87 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -83,9 +83,9 @@ test_script:
     - ps: .\install_python.ps1
     - set PYTHON=C:\Python38-x64
     - ps: .\install_python.ps1
-    - set PYTHON=C:\Python38rc1-x64
-    - ps: .\install_python.ps1
     - set PYTHON=C:\Python38
     - ps: .\install_python.ps1
-    - set PYTHON=C:\Python38rc1
+    - set PYTHON=C:\Python39rc1-x64
+    - ps: .\install_python.ps1
+    - set PYTHON=C:\Python39rc1
     - ps: .\install_python.ps1