diff --git a/pkgs/servers/sql/postgresql/ext/pg_safeupdate.nix b/pkgs/servers/sql/postgresql/ext/pg_safeupdate.nix
index 17ffa9a67203..b3cca02a3a25 100644
--- a/pkgs/servers/sql/postgresql/ext/pg_safeupdate.nix
+++ b/pkgs/servers/sql/postgresql/ext/pg_safeupdate.nix
@@ -1,9 +1,9 @@
 {
-  lib,
-  stdenv,
-  fetchFromGitHub,
-  postgresql,
   buildPostgresqlExtension,
+  fetchFromGitHub,
+  lib,
+  postgresql,
+  stdenv,
 }:
 
 with {
@@ -13,23 +13,23 @@ with {
   };
   "13" = {
     version = "1.4";
-    sha256 = "sha256-1cyvVEC9MQGMr7Tg6EUbsVBrMc8ahdFS3+CmDkmAq4Y=";
+    hash = "sha256-1cyvVEC9MQGMr7Tg6EUbsVBrMc8ahdFS3+CmDkmAq4Y=";
   };
   "14" = {
     version = "1.5";
-    sha256 = "sha256-RRSpkWLFuif+6RCncnsb1NnjKnIIRY9KgebKkjCN5cs=";
+    hash = "sha256-RRSpkWLFuif+6RCncnsb1NnjKnIIRY9KgebKkjCN5cs=";
   };
   "15" = {
     version = "1.5";
-    sha256 = "sha256-RRSpkWLFuif+6RCncnsb1NnjKnIIRY9KgebKkjCN5cs=";
+    hash = "sha256-RRSpkWLFuif+6RCncnsb1NnjKnIIRY9KgebKkjCN5cs=";
   };
   "16" = {
     version = "1.5";
-    sha256 = "sha256-RRSpkWLFuif+6RCncnsb1NnjKnIIRY9KgebKkjCN5cs=";
+    hash = "sha256-RRSpkWLFuif+6RCncnsb1NnjKnIIRY9KgebKkjCN5cs=";
   };
   "17" = {
     version = "1.5";
-    sha256 = "sha256-RRSpkWLFuif+6RCncnsb1NnjKnIIRY9KgebKkjCN5cs=";
+    hash = "sha256-RRSpkWLFuif+6RCncnsb1NnjKnIIRY9KgebKkjCN5cs=";
   };
 }
 ."${lib.versions.major postgresql.version}"
@@ -41,17 +41,17 @@ buildPostgresqlExtension rec {
 
   src = fetchFromGitHub {
     owner = "eradman";
-    repo = pname;
-    rev = version;
-    inherit sha256;
+    repo = "pg-safeupdate";
+    tag = version;
+    inherit hash;
   };
 
-  meta = with lib; {
+  meta = {
     description = "Simple extension to PostgreSQL that requires criteria for UPDATE and DELETE";
     homepage = "https://github.com/eradman/pg-safeupdate";
     changelog = "https://github.com/eradman/pg-safeupdate/raw/${src.rev}/NEWS";
     platforms = postgresql.meta.platforms;
-    maintainers = with maintainers; [ wolfgangwalther ];
-    license = licenses.postgresql;
+    maintainers = with lib.maintainers; [ wolfgangwalther ];
+    license = lib.licenses.postgresql;
   };
 }