diff --git a/pkgs/servers/varnish/default.nix b/pkgs/servers/varnish/default.nix
index 45fc65326526..339a2875cc60 100644
--- a/pkgs/servers/varnish/default.nix
+++ b/pkgs/servers/varnish/default.nix
@@ -2,14 +2,14 @@
 , coreutils, python3, makeWrapper }:
 
 let
-  common = { version, sha256, extraNativeBuildInputs ? [] }:
+  common = { version, hash, extraNativeBuildInputs ? [] }:
     stdenv.mkDerivation rec {
       pname = "varnish";
       inherit version;
 
       src = fetchurl {
         url = "https://varnish-cache.org/_downloads/${pname}-${version}.tgz";
-        inherit sha256;
+        inherit hash;
       };
 
       passthru.python = python3;
@@ -50,10 +50,10 @@ in
 {
   varnish60 = common {
     version = "6.0.10";
-    sha256 = "1sr60wg5mzjb14y75cga836f19sbmmpgh13mwc4alyg3irsbz1bb";
+    hash = "sha256-a4W/dI7jeaoI43UE+G6tS6fgzEDqsXI8CUv+Wh4HJus=";
   };
   varnish71 = common {
     version = "7.1.0";
-    sha256 = "1flyqr212jamqpwafdil170vc966r1mbb7n3ngjn8xk6hn3bhjpm";
+    hash = "sha256-9Uq4hoVmdmTls8OetWrIxiS2wQk0Nqf4xVVJEUTGnro=";
   };
 }