diff --git a/pkgs/development/python-modules/intbitset/default.nix b/pkgs/development/python-modules/intbitset/default.nix
index 9cedf7c4d28..f6459c13e70 100644
--- a/pkgs/development/python-modules/intbitset/default.nix
+++ b/pkgs/development/python-modules/intbitset/default.nix
@@ -2,6 +2,7 @@
 , fetchPypi
 , buildPythonPackage
 , pytestCheckHook
+, pythonOlder
 }:
 
 buildPythonPackage rec {
@@ -9,9 +10,11 @@ buildPythonPackage rec {
   version = "3.0.1";
   format = "setuptools";
 
+  disabled = pythonOlder "3.7";
+
   src = fetchPypi {
     inherit pname version;
-    sha256 = "sha256-8ebQPGcpkioiPFGEnfZbnpFuYlrvuRF4Tn+azUwgfVM=";
+    hash = "sha256-8ebQPGcpkioiPFGEnfZbnpFuYlrvuRF4Tn+azUwgfVM=";
   };
 
   checkInputs = [
@@ -25,7 +28,7 @@ buildPythonPackage rec {
   meta = with lib; {
     description = "C-based extension implementing fast integer bit sets";
     homepage = "https://github.com/inveniosoftware/intbitset";
-    license = licenses.lgpl3Only;
+    license = licenses.lgpl3Plus;
     maintainers = teams.determinatesystems.members;
   };
 }