diff --git a/pkgs/development/python-modules/deal-solver/default.nix b/pkgs/development/python-modules/deal-solver/default.nix
index f762ec0ca0ec..c7241d50146f 100644
--- a/pkgs/development/python-modules/deal-solver/default.nix
+++ b/pkgs/development/python-modules/deal-solver/default.nix
@@ -41,7 +41,7 @@ buildPythonPackage rec {
   propagatedBuildInputs = [
     z3
     astroid
-  ];
+  ] ++ z3.requiredPythonModules;
 
   checkInputs = [
     pytestCheckHook