diff --git a/pkgs/mono-gtk-theme.nix b/pkgs/mono-gtk-theme.nix
index 9668532..77bcb8c 100644
--- a/pkgs/mono-gtk-theme.nix
+++ b/pkgs/mono-gtk-theme.nix
@@ -12,7 +12,7 @@ stdenvNoCC.mkDerivation {
     owner = "witalihirsch";
     repo = "Mono-gtk-theme";
     rev = "89fa83a14b4e26c5b8fc4dbfa5558a7df704d5a4";
-    sha256 = "sha256-NaZgOOo5VVTlEand3qWryZ5ceNmyHaEt0aeT7j/KwvE=";
+    hash = "sha256-NaZgOOo5VVTlEand3qWryZ5ceNmyHaEt0aeT7j/KwvE=";
   };
 
   phases = [
diff --git a/pkgs/wps-office-fonts.nix b/pkgs/wps-office-fonts.nix
index e6474d9..28a55d7 100644
--- a/pkgs/wps-office-fonts.nix
+++ b/pkgs/wps-office-fonts.nix
@@ -2,12 +2,12 @@
   stdenvNoCC,
   fetchurl,
 }:
-stdenvNoCC.mkDerivation rec {
+stdenvNoCC.mkDerivation (finalAttrs: {
   pname = "wps-office-fonts";
   version = "1.0";
 
   src = fetchurl {
-    url = "https://github.com/Universebenzene/wps-office-fonts/archive/refs/tags/v${version}.tar.gz";
+    url = "https://github.com/Universebenzene/wps-office-fonts/archive/refs/tags/v${finalAttrs.version}.tar.gz";
     sha256 = "db01fc07324115b181cb06f50dfe09fd17feee132c46423ee70b260830211224";
   };
 
@@ -29,4 +29,4 @@ stdenvNoCC.mkDerivation rec {
     description = "The wps-office-fonts package contains Founder Chinese fonts";
     homepage = "https://github.com/Universebenzene/wps-office-fonts";
   };
-}
+})