diff --git a/scripts/_common.sh b/scripts/_common.sh
index 47253f1..7b84705 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -38,9 +38,6 @@ is_url_handled() {
     # Manage arguments with getopts
     ynh_handle_getopts_args "$@"
 
-    # Wait untils nginx has fully reloaded (avoid curl fail with http2)
-    sleep 2
-
     # Try to get the url with curl, and keep the http code and an eventual redirection url.
     local curl_output="$(curl --insecure --silent --output /dev/null \
       --write-out '%{http_code};%{redirect_url}' https://127.0.0.1$path --header "Host: $domain" --resolve $domain:443:127.0.0.1)"
diff --git a/scripts/upgrade b/scripts/upgrade
index 0f0da06..9045c6f 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -146,7 +146,7 @@ ynh_install_php --phpversion="$YNH_PHP_VERSION" --package="$extra_pkg_dependenci
 #=================================================
 # NGINX CONFIGURATION
 #=================================================
-ynh_script_progression --message="Upgrading nginx web server configuration..." --weight=2
+ynh_script_progression --message="Upgrading nginx web server configuration..." --weight=3
 
 ynh_backup_if_checksum_is_different --file="/etc/nginx/conf.d/$domain.d/$app.conf"
 
@@ -156,6 +156,9 @@ ynh_app_setting_delete --app=$app --key="checksum__etc_nginx_conf.d_$domain.d_$a
 
 ynh_systemd_action --service_name=nginx --action=reload
 
+# Wait untils nginx has fully reloaded
+sleep 1
+
 # Check if .well-known is available for this domain
 if is_url_handled --domain="$domain" --path="/.well-known/caldav" || is_url_handled --domain="$domain" --path="/.well-known/carddav"
 then