diff --git a/docker/development/etc/nginx/site-opts.d/http.conf b/docker/development/etc/nginx/site-opts.d/http.conf
index a5bbd78a3..d7855ae80 100644
--- a/docker/development/etc/nginx/site-opts.d/http.conf
+++ b/docker/development/etc/nginx/site-opts.d/http.conf
@@ -13,6 +13,9 @@ charset utf-8;
 # Set max upload to 2048M
 client_max_body_size 2048M;
 
+# Set client body buffer to handle Sentinel payloads in memory
+client_body_buffer_size 256k;
+
 # Healthchecks: Set /healthcheck to be the healthcheck URL
 location /healthcheck {
     access_log off;
diff --git a/docker/production/etc/nginx/site-opts.d/http.conf b/docker/production/etc/nginx/site-opts.d/http.conf
index a5bbd78a3..d7855ae80 100644
--- a/docker/production/etc/nginx/site-opts.d/http.conf
+++ b/docker/production/etc/nginx/site-opts.d/http.conf
@@ -13,6 +13,9 @@ charset utf-8;
 # Set max upload to 2048M
 client_max_body_size 2048M;
 
+# Set client body buffer to handle Sentinel payloads in memory
+client_body_buffer_size 256k;
+
 # Healthchecks: Set /healthcheck to be the healthcheck URL
 location /healthcheck {
     access_log off;