diff --git a/flake.nix b/flake.nix
index 3becf22a..aa3b53bd 100644
--- a/flake.nix
+++ b/flake.nix
@@ -41,10 +41,12 @@
         perlPackages = prev.perlPackages // {
           TestPostgreSQL = final.perlPackages.buildPerlModule {
             pname = "Test-PostgreSQL";
-            version = "1.27";
-            src = final.fetchurl {
-              url = "mirror://cpan/authors/id/T/TJ/TJC/Test-PostgreSQL-1.27.tar.gz";
-              sha256 = "b1bd231693100cc40905fb0ba3173173201621de9c8301f21c5b593b0a46f907";
+            version = "1.28-1";
+            src = final.fetchFromGitHub {
+              owner = "grahamc";
+              repo = "Test-postgresql";
+              rev = "release-1.28-1";
+              hash = "sha256-SFC1C3q3dbcBos18CYd/s0TIcfJW4g04ld0+XQXVToQ=";
             };
             buildInputs = with final.perlPackages; [ ModuleBuildTiny TestSharedFork pkgs.postgresql ];
             propagatedBuildInputs = with final.perlPackages; [ DBDPg DBI FileWhich FunctionParameters Moo TieHashMethod TryTiny TypeTiny ];
@@ -52,7 +54,7 @@
             makeMakerFlags = "POSTGRES_HOME=${final.postgresql}";
 
             meta = {
-              homepage = https://github.com/TJC/Test-postgresql;
+              homepage = "https://github.com/grahamc/Test-postgresql/releases/tag/release-1.28-1";
               description = "PostgreSQL runner for tests";
               license = with final.lib.licenses; [ artistic2 ];
             };