diff --git a/tildes/static/robots.txt b/tildes/static/robots.txt
index f099c1c..b317ebb 100644
--- a/tildes/static/robots.txt
+++ b/tildes/static/robots.txt
@@ -30,6 +30,10 @@ Disallow: /
 User-agent: dotbot
 Disallow: /
 
+# https://platform.openai.com/docs/gptbot
+User-agent: GPTBot
+Disallow: /
+
 # Unknown/suspicious scraper - UA only contains a gmail address
 User-agent: MauiBot
 Disallow: /