diff --git a/sources b/sources
index 7d5498c..06fb8d6 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (cffi-1.13.2.tar.gz) = 2c57d9c06c39e95498a54408dc39940427190f3c03e1b8f1a3584140db08a5775dd12e6e67b03093429c130af579d01519b0fc868b99ba7a530068ed22d38522
+SHA1 (cffi-1.13.2.tar.gz) = ad94c1b64570ec3016a945d4b226d527de81f9b9