diff --git a/deploy/varnish/default.vcl.template b/deploy/varnish/default.vcl.template
index ff31860..3d69823 100644
--- a/deploy/varnish/default.vcl.template
+++ b/deploy/varnish/default.vcl.template
@@ -6,7 +6,7 @@ import std;
 # ===== Backend =====
 backend app {
   .host = "app";
-  .port = "8000";
+  .port = "${APP_PORT}";
 }
 
 # ===== ACL =====
@@ -261,4 +261,4 @@ sub vcl_synth {
 # ===== PURGE HANDLER =====
 sub vcl_purge {
   return (synth(200, "Purged"));
-}
+}
\ No newline at end of file