diff --git a/infrastructure/nginx-system/release.yaml b/infrastructure/nginx-system/release.yaml
index 702e8eccd7d547e9fa0b614f8854ee3b371004b9..f9e228f012912ce2e67ab86be640bf66c06ed6fb 100644
--- a/infrastructure/nginx-system/release.yaml
+++ b/infrastructure/nginx-system/release.yaml
@@ -87,6 +87,7 @@ data:
         hsts-include-subdomains: false
         enable-brotli: "true"
         use-http2: "true"
+        proxy-buffer-size: 8k
       replicaCount: 2
       minAvailable: 1
       resources: