diff --git a/pkgs/development/python-modules/rank-bm25/default.nix b/pkgs/development/python-modules/rank-bm25/default.nix
index 840f70bb7f7c..bf77aeaae289 100644
--- a/pkgs/development/python-modules/rank-bm25/default.nix
+++ b/pkgs/development/python-modules/rank-bm25/default.nix
@@ -16,8 +16,8 @@ buildPythonPackage {
   # Pypi source package doesn't contain tests
   src = fetchFromGitHub {
     owner = "dorianbrown";
-    repo = "rank-bm25";
-    rev = version;
+    repo = "rank_bm25";
+    tag = version;
     hash = "sha256-+BxQBflMm2AvCLAFFj52Jpkqn+KErwYXU1wztintgOg=";
   };