diff --git a/pkgs/by-name/ka/kanidm/generic.nix b/pkgs/by-name/ka/kanidm/generic.nix
index ddaaba190fff..9b9a95df57c3 100644
--- a/pkgs/by-name/ka/kanidm/generic.nix
+++ b/pkgs/by-name/ka/kanidm/generic.nix
@@ -144,7 +144,7 @@ rustPlatform.buildRustPackage rec {
       # avoid spurious releases and tags such as "debs"
       extraArgs = [
         "-vr"
-        "v(.*)"
+        "v([0-9\\.]*)"
         "--override-filename"
         "pkgs/by-name/ka/kanidm/${
           builtins.replaceStrings [ "." ] [ "_" ] (lib.versions.majorMinor kanidm.version)