diff --git a/reverse-proxy/Caddyfile b/reverse-proxy/Caddyfile
index ac3249a..c72063d 100644
--- a/reverse-proxy/Caddyfile
+++ b/reverse-proxy/Caddyfile
@@ -1,7 +1,7 @@
 :80 {
-    reverse_proxy /api/* http://localhost:8080 
-    reverse_proxy /.well-known/* http://localhost:8080
-    reverse_proxy /* http://localhost:3000
+    reverse_proxy /api/* http://localhost:{$BACKEND_PORT:8080} 
+    reverse_proxy /.well-known/* http://localhost:{$BACKEND_PORT:8080}
+    reverse_proxy /* http://localhost:{$PORT:3000}
 
     log {
         output file /var/log/caddy/access.log
diff --git a/reverse-proxy/Caddyfile.trust-proxy b/reverse-proxy/Caddyfile.trust-proxy
index 068a98d..65af165 100644
--- a/reverse-proxy/Caddyfile.trust-proxy
+++ b/reverse-proxy/Caddyfile.trust-proxy
@@ -1,11 +1,11 @@
 :80 {
-    reverse_proxy /api/* http://localhost:8080  {
+    reverse_proxy /api/* http://localhost:{$BACKEND_PORT:8080}  {
             trusted_proxies 0.0.0.0/0
         }
-    reverse_proxy /.well-known/* http://localhost:8080  {
+    reverse_proxy /.well-known/* http://localhost:{$BACKEND_PORT:8080}  {
             trusted_proxies 0.0.0.0/0
         }
-    reverse_proxy /* http://localhost:3000  {
+    reverse_proxy /* http://localhost:{$PORT:3000}  {
             trusted_proxies 0.0.0.0/0
         }