diff --git a/.gitignore b/.gitignore
index 3dc18ea..0a7ba38 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 SOURCES/libpmemobj-cpp-1.13.0.tar.gz
+/libpmemobj-cpp-1.13.0.tar.gz
diff --git a/.libpmemobj-cpp.metadata b/.libpmemobj-cpp.metadata
new file mode 100644
index 0000000..eda04f1
--- /dev/null
+++ b/.libpmemobj-cpp.metadata
@@ -0,0 +1 @@
+25d601e0140f3d8db94edb19902826a6b91286e4 libpmemobj-cpp-1.13.0.tar.gz
diff --git a/sources b/sources
index cbc0cd9..6da2b24 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA1 (libpmemobj-cpp-1.13.0.tar.gz) = 25d601e0140f3d8db94edb19902826a6b91286e4
+SHA512 (libpmemobj-cpp-1.13.0.tar.gz) = 3968ab725fc439dd00638fd3306d8e9229bb36bf9cfa3faf97a78e41ef05293deff1e4f147f6b4c0a6164f7d153cb21764617b5a39bf4164a6b325d620cf1441