diff --git a/pkgs/applications/editors/emacs/elisp-packages/manual-packages/prisma-mode/default.nix b/pkgs/applications/editors/emacs/elisp-packages/manual-packages/prisma-mode/default.nix
index 983363ae838f..b1fda9bf08e6 100644
--- a/pkgs/applications/editors/emacs/elisp-packages/manual-packages/prisma-mode/default.nix
+++ b/pkgs/applications/editors/emacs/elisp-packages/manual-packages/prisma-mode/default.nix
@@ -2,30 +2,21 @@
 , fetchFromGitHub
 , melpaBuild
 , js2-mode
-, writeText
 }:
 
-let
-  rev = "5283ca7403bcb21ca0cac8ecb063600752dfd9d4";
-in melpaBuild {
+melpaBuild {
   pname = "prisma-mode";
-  version = "20211207.0";
-
-  commit = rev;
+  version = "0-unstable-2021-12-07";
 
   packageRequires = [ js2-mode ];
 
   src = fetchFromGitHub {
     owner = "pimeys";
     repo = "emacs-prisma-mode";
-    inherit rev;
-    sha256 = "sha256-DJJfjbu27Gi7Nzsa1cdi8nIQowKH8ZxgQBwfXLB0Q/I=";
+    rev = "5283ca7403bcb21ca0cac8ecb063600752dfd9d4";
+    hash = "sha256-DJJfjbu27Gi7Nzsa1cdi8nIQowKH8ZxgQBwfXLB0Q/I=";
   };
 
-  recipe = writeText "recipe" ''
-    (prisma-mode :repo "pimeys/emacs-prisma-mode" :fetcher github)
-  '';
-
   meta = {
     description = "Major mode for Prisma Schema Language";
     license = lib.licenses.gpl2Only;