diff --git a/.gitignore b/.gitignore
index 4767a88..3a85a06 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 SOURCES/constant-1.27.tar.gz
+/constant-1.27.tar.gz
diff --git a/sources b/sources
index ecc3c73..3855e2e 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA1 (constant-1.27.tar.gz) = 54223c06f492cd9fff118d8613b973c524df13f6
+SHA512 (constant-1.27.tar.gz) = 5840abb036c40c1f0db7d920959c20b01761e2a9e8e8276a7c6fe5dbfec41840c6a4114a378cf8ad7480e310a4328ce876bdd05c11236492c69b8a715d5e0af8