diff --git a/Dockerfile b/Dockerfile
index 105a2a7..924d5ab 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,6 +10,7 @@ COPY nginx-template.conf /nginx-template.conf
 ENV PORT 80
 ENV DOLLAR $
 ENV API_URL http://localhost:8080
+ENV MAX_PAYLOAD_SIZE 500M
 
 EXPOSE 80
 
diff --git a/nginx-template.conf b/nginx-template.conf
index 46e8602..5afe1ef 100644
--- a/nginx-template.conf
+++ b/nginx-template.conf
@@ -24,7 +24,7 @@ http {
 		location /api {
 			proxy_set_header Host ${DOLLAR}host;
 			proxy_set_header X-Real-IP ${DOLLAR}remote_addr;
-			client_max_body_size 500M;
+			client_max_body_size ${MAX_PAYLOAD_SIZE};
 			proxy_pass ${API_URL};
 		}