diff --git a/index.md b/index.md
index 5092bc9..fb7221e 100644
--- a/index.md
+++ b/index.md
@@ -13,8 +13,8 @@ humandate: "November 13-14 2023"    # human-readable dates for the workshop (e.g
 humantime: "10:00 - 17:00"    # human-readable times for the workshop (e.g., "9:00 am - 4:30 pm")
 startdate: 2023-11-13   # machine-readable start date for the workshop in YYYY-MM-DD format like 2015-01-01
 enddate: 2023-11-14  # machine-readable end date for the workshop in YYYY-MM-DD format like 2015-01-02
-instructor: ["Hugh Warden", "Ben King"] # boxed, comma-separated list of instructors' names as strings, like ["Kay McNulty", "Betty Jennings", "Betty Snyder"]
-helper: ["Giacomo Peru", "Rosie Eccleston", "Mario Antonioletti", "Sam Haynes"]     # boxed, comma-separated list of helpers' names, like ["Marlyn Wescoff", "Fran Bilas", "Ruth Lichterman"]
+instructor: ["Sam Haynes", "Ben King"] # boxed, comma-separated list of instructors' names as strings, like ["Kay McNulty", "Betty Jennings", "Betty Snyder"]
+helper: ["Giacomo Peru", "Rosie Eccleston", "Mario Antonioletti", "Hugh Warden"]     # boxed, comma-separated list of helpers' names, like ["Marlyn Wescoff", "Fran Bilas", "Ruth Lichterman"]
 email: ["lucie.woellenstein@ed.ac.uk"]    # boxed, comma-separated list of contact email addresses for the host, lead instructor, or whoever else is handling questions, like ["marlyn.wescoff@example.org", "fran.bilas@example.org", "ruth.lichterman@example.org"]
 collaborative_notes: https://pad.carpentries.org/2023-11-13-dusc-ml-python # optional: URL for the workshop collaborative notes, e.g. an Etherpad or Google Docs document (e.g., https://pad.carpentries.org/2015-01-01-euphoria)
 ---