diff --git a/.env.heroku b/.env.heroku
index 55237bd98b..92c2dbf7d2 100644
--- a/.env.heroku
+++ b/.env.heroku
@@ -19,7 +19,7 @@ TZ=UTC
 
 # APP_URL and TRUSTED_PROXIES are useful when using Docker and/or a reverse proxy.
 APP_URL=http://localhost
-TRUSTED_PROXIES=
+TRUSTED_PROXIES=**
 
 # The log channel defines where your log entries go to.
 LOG_CHANNEL=syslog