diff --git a/pkgs/development/python-modules/pyosmium/default.nix b/pkgs/development/python-modules/pyosmium/default.nix
index 7ad9f2b2cc3f..76bbe05115ef 100644
--- a/pkgs/development/python-modules/pyosmium/default.nix
+++ b/pkgs/development/python-modules/pyosmium/default.nix
@@ -22,7 +22,7 @@
 
 buildPythonPackage rec {
   pname = "pyosmium";
-  version = "4.0.2";
+  version = "4.2.0";
   pyproject = true;
 
   disabled = isPyPy;
@@ -31,7 +31,7 @@ buildPythonPackage rec {
     owner = "osmcode";
     repo = "pyosmium";
     tag = "v${version}";
-    hash = "sha256-pW2w/M4P4DtGhnTy72w0wjMtpLtSgvYGaemme/rRrwM=";
+    hash = "sha256-AkldgvZmn1CLa9Ze7RHBhL5wLLJ+mBnNj+yyV98nzZ8=";
   };
 
   build-system = [ setuptools ];
@@ -65,7 +65,7 @@ buildPythonPackage rec {
   meta = {
     description = "Python bindings for libosmium";
     homepage = "https://osmcode.org/pyosmium";
-    changelog = "https://github.com/osmcode/pyosmium/blob/v${version}/CHANGELOG.md";
+    changelog = "https://github.com/osmcode/pyosmium/blob/${src.tag}/CHANGELOG.md";
     license = lib.licenses.bsd2;
     maintainers = with lib.maintainers; [ sikmir ];
   };