diff --git a/sources b/sources
index 1b2543f..45e115e 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-4faf5a19c529ff5dae6071d346a47468  IPC-SysV-2.07.tar.gz
+SHA512 (IPC-SysV-2.07.tar.gz) = 2f12f48fe3cf453c51543b78674c274caddcbf2c7fe38fa713ee810bb5c37df2e1e6543e2526dbe59a8d805ec5a0d114929559b58478d8b143c80417d070089c