diff --git a/pkgs/development/python-modules/blackjax/default.nix b/pkgs/development/python-modules/blackjax/default.nix
index 3e8c680f7c91..fa4ef1b19f06 100644
--- a/pkgs/development/python-modules/blackjax/default.nix
+++ b/pkgs/development/python-modules/blackjax/default.nix
@@ -17,7 +17,7 @@
 
 buildPythonPackage rec {
   pname = "blackjax";
-  version = "1.2.1";
+  version = "1.2.2";
   pyproject = true;
 
   disabled = pythonOlder "3.9";
@@ -26,7 +26,7 @@ buildPythonPackage rec {
     owner = "blackjax-devs";
     repo = "blackjax";
     rev = "refs/tags/${version}";
-    hash = "sha256-VoWBCjFMyE5LVJyf7du/pKlnvDHj22lguiP6ZUzH9ak=";
+    hash = "sha256-W89L/3bpvecZdCpLCQOppev+fPc+SXd/T+zZLBH2wJs=";
   };
 
   build-system = [ setuptools-scm ];
@@ -65,11 +65,11 @@ buildPythonPackage rec {
 
   pythonImportsCheck = [ "blackjax" ];
 
-  meta = with lib; {
+  meta = {
     homepage = "https://blackjax-devs.github.io/blackjax";
     description = "Sampling library designed for ease of use, speed and modularity";
     changelog = "https://github.com/blackjax-devs/blackjax/releases/tag/${version}";
-    license = licenses.asl20;
-    maintainers = with maintainers; [ bcdarwin ];
+    license = lib.licenses.asl20;
+    maintainers = with lib.maintainers; [ bcdarwin ];
   };
 }