diff --git a/backend-compliance/compliance/api/agent_compliance_check_routes.py b/backend-compliance/compliance/api/agent_compliance_check_routes.py
index 89ea7c19..b0a23e16 100644
--- a/backend-compliance/compliance/api/agent_compliance_check_routes.py
+++ b/backend-compliance/compliance/api/agent_compliance_check_routes.py
@@ -1399,11 +1399,11 @@ async def _autodiscover_missing(
     disc_cookie_texts: list[str] = []
     for base in crawl_bases:
         try:
-            async with httpx.AsyncClient(timeout=180.0) as client:
+            async with httpx.AsyncClient(timeout=300.0) as client:  # P90: 180s -> 300s
                 resp = await client.post(
                     f"{CONSENT_TESTER_URL}/dsi-discovery",
                     json={"url": base, "max_documents": 15},
-                    timeout=180.0,
+                    timeout=300.0,  # P90: 180s -> 300s
                 )
                 if resp.status_code != 200:
                     logger.warning("auto-discovery: HTTP %d for %s",