diff --git a/build-constraints.yaml b/build-constraints.yaml
index 24c13555..b329309c 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4582,7 +4582,7 @@ packages:
     "Masahiro Honma <hiratara@cpan.org> @hiratara":
         - string-random
 
-    "Michael B. Gale <m.gale@warwick.ac.uk> @mbg":
+    "Michael B. Gale <github@michael-gale.co.uk> @mbg":
         - c14n
         - katip-logstash
         - logstash