diff --git a/external.conf b/external.conf
index 5bb98f4..e534ed9 100644
--- a/external.conf
+++ b/external.conf
@@ -138,6 +138,19 @@ location /out/tre.mattersoft.fi/ {
   proxy_set_header Authorization NEW_LISSU_BASIC_AUTH;
 }
 
+#tampere trip updates (https://lissu.tampere.fi/api/gtfsrealtime/v2.0/feed/tripupdate)
+location /out/lissu.tampere.fi/ {
+  proxy_pass    https://lissu.tampere.fi/;
+  include allowed-ips.conf;
+  proxy_cache   ext_cache;
+  proxy_cache_valid 200 30s;
+  proxy_cache_lock on;
+  add_header X-Proxy-Cache $upstream_cache_status;
+  proxy_ignore_headers X-Accel-Expires Expires Cache-Control Set-Cookie;
+  proxy_cache_use_stale error timeout http_500 http_502 http_503 http_504;
+  proxy_set_header Authorization NEW_LISSU_BASIC_AUTH;
+}
+
 #tampere test gtfs rt (https://nysse.mattersoft.fi/api/gtfsrealtime/v1.0/feed/tripupdate, servicealerts and vehiclepositions)
 location /out/nysse.mattersoft.fi/ {
   proxy_pass    https://nysse.mattersoft.fi/;