diff --git a/_external/data b/_external/data
index bb13363..e0fa319 160000
--- a/_external/data
+++ b/_external/data
@@ -1 +1 @@
-Subproject commit bb1336392685c5dec9dbf30c5fb5c9e0c0c9260d
+Subproject commit e0fa319e64086c3a2f5535a3454f6bcf71e66d20
diff --git a/content/acknowledgements.md b/content/acknowledgements.md
index 1704266..eebb3ae 100644
--- a/content/acknowledgements.md
+++ b/content/acknowledgements.md
@@ -35,7 +35,7 @@ Accessibility Roles and Responsibilities Mapping (ARRM) was initially developed
 * Project lead:
   * Denis ...
 * Major project contributors:
-  * ...
+  * Mike Gifford, Jennifer Chadwick
 * Additional project contributors:
   * ...