diff --git a/pkgs/applications/graphics/unigine-superposition/default.nix b/pkgs/applications/graphics/unigine-superposition/default.nix
index c1bd6e8c12f7..00e4903f8a09 100644
--- a/pkgs/applications/graphics/unigine-superposition/default.nix
+++ b/pkgs/applications/graphics/unigine-superposition/default.nix
@@ -37,7 +37,7 @@ let
 
     src = fetchurl {
       url = "https://assets.unigine.com/d/Unigine_Superposition-${version}.run";
-      sha256 = "12hzlz792pf8pvxf13fww3qhahqzwzkxq9q3mq20hbhvaphbg7nd";
+      hash = "sha256-dJThxzv1nvIWFRPV1cudm/+9hHmSnUl2rFO2lV3lgPg=";
     };
 
     nativeBuildInputs = [
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 = ''
diff --git a/pkgs/by-name/un/unigine-valley/package.nix b/pkgs/by-name/un/unigine-valley/package.nix
index 1d6625cbc727..4fc86d00920d 100644
--- a/pkgs/by-name/un/unigine-valley/package.nix
+++ b/pkgs/by-name/un/unigine-valley/package.nix
@@ -40,7 +40,7 @@ stdenv.mkDerivation rec {
 
   src = fetchurl {
     url = "https://assets.unigine.com/d/Unigine_Valley-${version}.run";
-    sha256 = "sha256-XwyL0kMRGFURgrq79fHCD7FOekB4lpckDcr1RkQ2YPQ=";
+    hash = "sha256-L7R6nEXQbLTEi76VUoUyhS2LFeTdgdaTaIQVWGn/1+8=";
   };
 
   sourceRoot = "Unigine_Valley-${version}";