diff --git a/999-main.conf b/999-main.conf
index eac38b0..60a084b 100644
--- a/999-main.conf
+++ b/999-main.conf
@@ -4,6 +4,8 @@
         Require all granted
 </Directory>
 
+Protocols h2 h2c http/1.1
+
 RemoteIPHeader X-Forwarded-For
 RemoteIPInternalProxy 172.20.0.0/16
 RemoteIPInternalProxy 172.21.0.0/16