diff --git a/sources b/sources
index 9fd642f..126d4f3 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (Python-3.7.0a4.tar.xz) = 3d9517fb381258e21548e3e88de88592adc75bc37fddf21e79149d7706d85f5df816ffcc170603ce93959c76d903d4fd4c0231b5b0b2b430c21701cc303d9e5a
+SHA512 (Python-3.7.0b1.tar.xz) = c2c9d76c310987e1998504ae6270350e7afd3834923143fe9f9e7ad130a491f2d1b45f26aff4c3ce5e6133979098da68e865aaabfc1dc6ff4227e6ef969cd50c