diff --git a/R/phs_GET.R b/R/phs_GET.R
index 0af0702..2918784 100644
--- a/R/phs_GET.R
+++ b/R/phs_GET.R
@@ -11,6 +11,7 @@ phs_GET <- function(action, query, verbose = FALSE) {
   response <- httr::RETRY(
     verb = "GET",
     url = url,
+    terminate_on = c(409),
     user_agent = httr::user_agent(
       "https://github.com/Public-Health-Scotland/phsmethods"
     )