diff --git a/sources b/sources
index c2e7953..6f3c395 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA1 (ipaddress-1.0.18.tar.gz) = f15a3714e4bea2ddfe54e80ad6f7b5de57cc94c5
+SHA512 (ipaddress-1.0.18.tar.gz) = 7d1c8cf67db5b55a872783390ca214bb39e243d313311674afe10008e86638838bef5f9e6d703803bdcfde6d27520b1fc19d0adb19d482e27a327fb735aa0312