diff --git a/pkgs/by-name/un/unigine-heaven/package.nix b/pkgs/by-name/un/unigine-heaven/package.nix
index 9b3e3e22e86b..86fac20ca258 100644
--- a/pkgs/by-name/un/unigine-heaven/package.nix
+++ b/pkgs/by-name/un/unigine-heaven/package.nix
@@ -41,7 +41,7 @@ stdenv.mkDerivation {
 
   src = fetchurl {
     url = "https://assets.unigine.com/d/Unigine_Heaven-${version}.run";
-    sha256 = "19rndwwxnb9k2nw9h004hyrmr419471s0fp25yzvvc6rkd521c0v";
+    hash = "sha256-UtsuXe3VYh18K/qTa0gsCnzGmzBhYnjvGZUT1JTY45c=";
   };
 
   installPhase = ''