diff --git a/sources b/sources
index d1f309d..b4abf93 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (attrs-20.3.0.tar.gz) = bb6cb43b8e7ba32caa18378d6bb20121be930d3397cc0793fe44c2c4c00beec81055b8fde32ea52e51cf7a3029c049f650c4df4ec73a4a104f75a9a399bf5194
+SHA1 (attrs-20.3.0.tar.gz) = f0f9640820631a78ade009cf83336c1fa49d5a51