diff --git a/pkgs/development/libraries/libmd/default.nix b/pkgs/development/libraries/libmd/default.nix
index 8951017a4b5c..2da8e5ebf738 100644
--- a/pkgs/development/libraries/libmd/default.nix
+++ b/pkgs/development/libraries/libmd/default.nix
@@ -3,11 +3,11 @@
 stdenv.mkDerivation rec {
   name = "${pname}-${version}";
   pname = "libmd";
-  version = "0.0.0";
+  version = "1.0.0";
 
   src = fetchurl {
     url = "https://archive.hadrons.org/software/${pname}/${pname}-${version}.tar.xz";
-    sha256 = "121s73pgbqsnmy6xblbrkj9y44c5zzzpf2hcmh6zvcvg4dk26gzx";
+    sha256 = "1iv45npzv0gncjgcpx5m081861zdqxw667ysghqb8721yrlyl6pj";
   };
 
   nativeBuildInputs = [ autoreconfHook ];