diff --git a/pkgs/applications/science/astronomy/gravit/default.nix b/pkgs/applications/science/astronomy/gravit/default.nix
index 1be1328da27..85339a86733 100644
--- a/pkgs/applications/science/astronomy/gravit/default.nix
+++ b/pkgs/applications/science/astronomy/gravit/default.nix
@@ -1,11 +1,11 @@
 { stdenv, fetchurl, SDL, SDL_ttf, SDL_image, mesa, libpng, lua5, automake, autoconf }:
 
 stdenv.mkDerivation rec {
-  name = "gravit-0.5.0";
+  name = "gravit-0.5.1";
 
   src = fetchurl {
     url = "http://gravit.slowchop.com/media/downloads/${name}.tgz";
-    sha256 = "0lyw0skrkb04s16vgz7ggswjrdxk1h23v5s85s09gjxzjp1xd3xp";
+    sha256 = "14vf7zj2bgrl96wsl3f1knsggc8h9624354ajzd72l46y09x5ky7";
   };
 
   buildInputs = [mesa SDL SDL_ttf SDL_image lua5 automake autoconf libpng];