diff --git a/jsc_custom/spawner/spawner.py b/jsc_custom/spawner/spawner.py
index e08f53d846e61c4a54f3f471eb2c06b2dfe68534..5c72eaf5b1ff07831d6c01ce20b6b35a1161a191 100644
--- a/jsc_custom/spawner/spawner.py
+++ b/jsc_custom/spawner/spawner.py
@@ -353,6 +353,10 @@ async def custom_env(spawner, user_options, jupyterhub_api_url):
         env[
             "JUPYTERHUB_FLAVORS_UPDATE_URL"
         ] = f"{jupyterhub_api_url.rstrip('/')}/outpostflavors/{system}"
+        if os.environ.get("OUTPOST_FLAVORS_UPDATE_TOKEN", None):
+            env["JUPYTERHUB_FLAVORS_UPDATE_TOKEN"] = os.environ.get(
+                "OUTPOST_FLAVORS_UPDATE_TOKEN", ""
+            )
     return env