Bump to 3.9.0a0
diff --git a/PC/pyconfig.h b/PC/pyconfig.h
index a74ee98..1225912 100644
--- a/PC/pyconfig.h
+++ b/PC/pyconfig.h
@@ -274,11 +274,11 @@
                         file in their Makefile (other compilers are
                         generally taken care of by distutils.) */
 #                       if defined(_DEBUG)
-#                               pragma comment(lib,"python38_d.lib")
+#                               pragma comment(lib,"python39_d.lib")
 #                       elif defined(Py_LIMITED_API)
 #                               pragma comment(lib,"python3.lib")
 #                       else
-#                               pragma comment(lib,"python38.lib")
+#                               pragma comment(lib,"python39.lib")
 #                       endif /* _DEBUG */
 #               endif /* _MSC_VER */
 #       endif /* Py_BUILD_CORE */