diff --git a/.gitignore b/.gitignore
index ebffeaf..a9ce41e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 SOURCES/JSON-PP-4.04.tar.gz
+/JSON-PP-4.04.tar.gz
diff --git a/sources b/sources
index d603d24..98a4835 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA1 (JSON-PP-4.04.tar.gz) = f0a1ba2308bb0908881142aaf66b92f67b3a9682
+SHA512 (JSON-PP-4.04.tar.gz) = 236782e5593e247d29abacedee3b3b24352d9f8f20e2bfe6b4c3e82e4a83f24f7a640321ae8e3d5f1485318f5582748b57189ebcf52f21eb2cc998293a9c5aab