diff --git a/pkgs/development/python-modules/rustworkx/default.nix b/pkgs/development/python-modules/rustworkx/default.nix
index 9054cb14d278..055d5ff85728 100644
--- a/pkgs/development/python-modules/rustworkx/default.nix
+++ b/pkgs/development/python-modules/rustworkx/default.nix
@@ -7,6 +7,7 @@
 , numpy
 , fixtures
 , networkx
+, testtools
 , libiconv
 , stdenv
 , lib
@@ -37,12 +38,12 @@ buildPythonPackage rec {
 
   buildInputs = [ numpy ] ++ lib.optionals stdenv.isDarwin [ libiconv ];
 
-  checkInputs = [ fixtures networkx ];
+  checkInputs = [ fixtures networkx testtools ];
 
   pythonImportsCheck = [ "rustworkx" ];
 
   meta = with lib; {
-    description = "A high performance Python graph library implemented in Rust.";
+    description = "A high performance Python graph library implemented in Rust";
     homepage = "https://github.com/Qiskit/rustworkx";
     license = licenses.asl20;
     maintainers = with maintainers; [ raitobezarius ];