diff --git a/winbuild/README.md b/winbuild/README.md
index 7e81abcb0e5..c8048bcc94a 100644
--- a/winbuild/README.md
+++ b/winbuild/README.md
@@ -16,7 +16,7 @@ For more extensive info, see the [Windows build instructions](build.rst).
 
 The following is a simplified version of the script used on AppVeyor:
 ```
-set PYTHON=C:\Python38\bin
+set PYTHON=C:\Python39\bin
 cd /D C:\Pillow\winbuild
 %PYTHON%\python.exe build_prepare.py -v --depends=C:\pillow-depends
 build\build_dep_all.cmd
diff --git a/winbuild/build.rst b/winbuild/build.rst
index d0be2943eb4..96b8803b477 100644
--- a/winbuild/build.rst
+++ b/winbuild/build.rst
@@ -114,7 +114,7 @@ Example
 
 The following is a simplified version of the script used on AppVeyor::
 
-    set PYTHON=C:\Python38\bin
+    set PYTHON=C:\Python39\bin
     cd /D C:\Pillow\winbuild
     %PYTHON%\python.exe build_prepare.py -v --depends C:\pillow-depends
     build\build_dep_all.cmd