diff --git a/docker-compose.yml b/docker-compose.yml
index 5eb879aed5..9527bad21c 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -142,7 +142,7 @@ services:
       SLACK_WEBHOOK_URL: ${SLACK_WEBHOOK_URL}
       ORDNANCE_SURVEY_API_KEY: ${ORDNANCE_SURVEY_API_KEY}
       MINIO_PORT: ${MINIO_PORT}
-      CORS_ALLOWLIST: ${EDITOR_URL_EXT}, ${API_URL_EXT}
+      CORS_ALLOWLIST: ${EDITOR_URL_EXT}, ${API_URL_EXT}, https://login.live.com
       ENCRYPTION_KEY: ${ENCRYPTION_KEY}
       # Local authority config
       # Lambeth