diff --git a/pkgs/development/python-modules/unicode-rbnf/default.nix b/pkgs/development/python-modules/unicode-rbnf/default.nix
index a672feebf5ee..7bc806314a72 100644
--- a/pkgs/development/python-modules/unicode-rbnf/default.nix
+++ b/pkgs/development/python-modules/unicode-rbnf/default.nix
@@ -12,14 +12,14 @@
 
 buildPythonPackage rec {
   pname = "unicode-rbnf";
-  version = "1.1.0";
+  version = "1.2.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "rhasspy";
     repo = "unicode-rbnf";
-    rev = "v${version}";
-    hash = "sha256-PquPoiaO1rEDMz7jaN9MUB0UQGH07M0O9mlrUCsfhm4=";
+    rev = "refs/tags/v${version}";
+    hash = "sha256-dAoDO707qmdDzCbi7EWNaM9txdBV46NlLkOs7xyycz0=";
   };
 
   nativeBuildInputs = [ setuptools ];