diff --git a/pkgs/development/python-modules/bibtexparser/default.nix b/pkgs/development/python-modules/bibtexparser/default.nix
index 38dcd4a705f2..43541b800862 100644
--- a/pkgs/development/python-modules/bibtexparser/default.nix
+++ b/pkgs/development/python-modules/bibtexparser/default.nix
@@ -9,7 +9,7 @@
 
 buildPythonPackage rec {
   pname = "bibtexparser";
-  version = "1.4.1";
+  version = "1.4.3";
   format = "setuptools";
 
   disabled = pythonOlder "3.7";
@@ -17,8 +17,8 @@ buildPythonPackage rec {
   src = fetchFromGitHub {
     owner = "sciunto-org";
     repo = "python-${pname}";
-    rev = "refs/tags/v${version}";
-    hash = "sha256-YMkLSx7L2srLINZa6Ec0rPoxE2SdMv6CnI4BpHgHuzM=";
+    tag = "v${version}";
+    hash = "sha256-9m+7RbeJMJssviyIezPrSLMMGcQTHYaOFQwLhnu04Es=";
   };
 
   propagatedBuildInputs = [ pyparsing ];