diff --git a/at/__init__.py b/at/__init__.py
index bfc88e0..aa26d0c 100644
--- a/at/__init__.py
+++ b/at/__init__.py
@@ -29,9 +29,13 @@ def create_app(config=None):
     elif "SITE_URL" not in app.config.keys():
         app.logger.info("SITE_URL not set. Using default.")
         app.config["SITE_URL"] = "http://localhost"
-
     app.logger.info(f"SITE_URL: {app.config['SITE_URL']}")
 
+    if dt_latest_draft_url := getenv("DT_LATEST_DRAFT_URL"):
+        app.logger.info(
+                f"Using DT_LATEST_DRAFT_URL from ENV: {dt_latest_draft_url}")
+        app.config["DT_LATEST_DRAFT_URL"] = dt_latest_draft_url
+
     if sentry_dsn := getenv("SENTRY_DSN"):
         sentry_init(
             dsn=sentry_dsn,
diff --git a/k8s/secrets.yaml b/k8s/secrets.yaml
index b7de8a0..8a2b9c8 100644
--- a/k8s/secrets.yaml
+++ b/k8s/secrets.yaml
@@ -6,4 +6,5 @@ type: Opaque
 stringData:
   GUNICORN_WORKERS: "2"
   SITE_URL: "https://author-tools.ietf.org"
+  DT_LATEST_DRAFT_URL: "http://dt-datatracker.datatracker.svc/api/rfcdiff-latest-json"
   # SENTRY_DSN: "" secret from vault