diff --git a/pkgs/development/python-modules/llama-index-vector-stores-postgres/default.nix b/pkgs/development/python-modules/llama-index-vector-stores-postgres/default.nix
index 94395f8e59ff..9bc8cd2c5fa8 100644
--- a/pkgs/development/python-modules/llama-index-vector-stores-postgres/default.nix
+++ b/pkgs/development/python-modules/llama-index-vector-stores-postgres/default.nix
@@ -9,14 +9,14 @@
   psycopg2,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "llama-index-vector-stores-postgres";
   version = "0.7.3";
   pyproject = true;
 
   src = fetchPypi {
     pname = "llama_index_vector_stores_postgres";
-    inherit version;
+    inherit (finalAttrs) version;
     hash = "sha256-e1xi5GLWgde42GaLk+WwAjv9Oqr8924rS/z4hdw7ScY=";
   };
 
@@ -41,4 +41,4 @@ buildPythonPackage rec {
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ fab ];
   };
-}
+})