diff --git a/pkgs/development/python-modules/tcxparser/default.nix b/pkgs/development/python-modules/tcxparser/default.nix
index 5c06e2f83bf0..97b1e8d97c79 100644
--- a/pkgs/development/python-modules/tcxparser/default.nix
+++ b/pkgs/development/python-modules/tcxparser/default.nix
@@ -11,7 +11,7 @@
 
 buildPythonPackage rec {
   pname = "tcxparser";
-  version = "2.4.0";
+  version = "2.4.0-r1";
   pyproject = true;
 
   disabled = pythonOlder "3.9";
@@ -20,7 +20,7 @@ buildPythonPackage rec {
     owner = "vkurup";
     repo = "python-tcxparser";
     tag = version;
-    hash = "sha256-YZgzvwRy47MOTClAeJhzD6kZhGgCeVSGko6LgR/Uy0o=";
+    hash = "sha256-lQczTuxmxu4nCPJsgblrW2RXST7kvhtPnscemwXCx0Y=";
   };
 
   build-system = [