diff --git a/sources b/sources
index 36f1b71..2619bbf 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA1 (attrs-19.3.0.tar.gz) = c814bf4a79c760a54ecb41796656b01166ebfdcd
+SHA512 (attrs-19.3.0.tar.gz) = f050ff707cb95f0639b239435b65dacc164a540b5a456d27be5f47615ee7a860ae38096cd16769b0d07fe8e5e952ccaa5af0eb0aafb5166421f9eb3edf248425