diff --git a/pkgs/development/python-modules/python-olm/default.nix b/pkgs/development/python-modules/python-olm/default.nix
index 1a2ed41e55d6..c97468f35778 100644
--- a/pkgs/development/python-modules/python-olm/default.nix
+++ b/pkgs/development/python-modules/python-olm/default.nix
@@ -2,8 +2,8 @@
   buildPythonPackage,
   isPy3k,
   olm,
+  setuptools,
   cffi,
-  future,
   aspectlib,
   pytest-benchmark,
   pytestCheckHook,
@@ -11,8 +11,8 @@
 
 buildPythonPackage {
   pname = "python-olm";
-  format = "setuptools";
   inherit (olm) src version;
+  pyproject = true;
 
   disabled = !isPy3k;
 
@@ -23,9 +23,12 @@ buildPythonPackage {
     make include/olm/olm.h
   '';
 
-  propagatedBuildInputs = [
+  build-system = [
+    setuptools
+  ];
+
+  dependencies = [
     cffi
-    future
   ];
 
   propagatedNativeBuildInputs = [ cffi ];