diff --git a/pkgs/development/python-modules/llama-index-embeddings-gemini/default.nix b/pkgs/development/python-modules/llama-index-embeddings-gemini/default.nix
index 2bf7acb72d83..8d09ffdb7126 100644
--- a/pkgs/development/python-modules/llama-index-embeddings-gemini/default.nix
+++ b/pkgs/development/python-modules/llama-index-embeddings-gemini/default.nix
@@ -4,7 +4,7 @@
   fetchPypi,
   google-generativeai,
   llama-index-core,
-  poetry-core,
+  hatchling,
   pythonOlder,
 }:
 
@@ -23,7 +23,7 @@ buildPythonPackage rec {
 
   pythonRelaxDeps = [ "google-generativeai" ];
 
-  build-system = [ poetry-core ];
+  build-system = [ hatchling ];
 
   dependencies = [
     google-generativeai