diff --git a/pkgs/by-name/sp/sparkle/package.nix b/pkgs/by-name/sp/sparkle/package.nix
index 6fbdfab23857..b813676aea24 100644
--- a/pkgs/by-name/sp/sparkle/package.nix
+++ b/pkgs/by-name/sp/sparkle/package.nix
@@ -3,8 +3,7 @@
   stdenvNoCC,
   buildGoModule,
   fetchFromGitHub,
-  pnpm_10,
-  pnpm ? pnpm_10,
+  pnpm_10_29_2,
   fetchPnpmDeps,
   pnpmConfigHook,
   nodejs,
@@ -38,6 +37,8 @@ let
 
     meta.mainProgram = "sparkle-service";
   };
+
+  pnpm = pnpm_10_29_2;
 in
 
 stdenvNoCC.mkDerivation (finalAttrs: {