diff --git a/reverse-proxy.md b/reverse-proxy.md
index 5b90a943..940a8b04 100644
--- a/reverse-proxy.md
+++ b/reverse-proxy.md
@@ -56,7 +56,7 @@ Add this as a new Apache site config:
     Protocols h2 h2c http/1.1
     
     # Solves slow upload speeds caused by http2
-    H2WindowSize 1048576
+    H2WindowSize 5242880
 
     # SSL
     SSLEngine on
@@ -258,9 +258,6 @@ server {
 
     listen 443 ssl http2;
     listen [::]:443 ssl http2; # comment to disable IPv6
-    
-    # Solves slow upload speeds caused by http2
-    http2_body_preread_size 1048576;
 
     server_name <your-nc-domain>;
 
@@ -273,6 +270,8 @@ server {
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         proxy_read_timeout 86400s;
         client_max_body_size 0;
+        # Solves slow upload speeds caused by http2
+        client_body_buffer_size 512k;
 
         # Websocket
         proxy_http_version 1.1;