diff --git a/build-constraints.yaml b/build-constraints.yaml
index 5613759e..9a87e3cb 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -732,7 +732,7 @@ packages:
     "Paul Rouse <pgr@doynton.org>":
         - yesod-auth-hashdb
 
-    "Toralf Wittner <tw@dtex.org>":
+    "Toralf Wittner <tw@dtex.org> @twittner":
         - bytestring-conversion
         - cql
         - cql-io