diff --git a/test/integration-spec.yaml b/test/integration-spec.yaml
index b29f1f5aa..8a8c082c7 100644
--- a/test/integration-spec.yaml
+++ b/test/integration-spec.yaml
@@ -986,10 +986,8 @@
     oldTlsProtocol: 0
 
 # http/3
-# - url: "https://127.0.0.1:9001" # TODO - https://github.com/macbre/phantomas/pull/970
-- url: "https://gf.dev/http3-test"
-  label: "h3"
-  flaky: Reaches the timeout of 5000 ms
+- url: "https://127.0.0.1:9001"
+  label: "localhost h3 version"
   metrics:
     mainDomainHttpProtocol: "h3"
     mainDomainTlsProtocol: "QUIC"
diff --git a/test/nginx-static.conf b/test/nginx-static.conf
index 7b7ba9b05..f6d37ac02 100644
--- a/test/nginx-static.conf
+++ b/test/nginx-static.conf
@@ -100,7 +100,7 @@ server {
     listen 445 ssl;
     http2 on;
 
-    server_name  localhost;
+    server_name localhost;
 
     ssl_certificate      /etc/nginx/localhost.crt;
     ssl_certificate_key  /etc/nginx/localhost.key;
@@ -108,9 +108,13 @@ server {
     # Enable all TLS versions (TLSv1.3 is required for QUIC).
     ssl_protocols TLSv1.1 TLSv1.2 TLSv1.3;
 
+    # 0-RTT QUIC connection resumption
+    ssl_early_data on;
+
     # Add Alt-Svc header to negotiate HTTP/3.
     # port 9001 is what's presented to the client (see docker compose YAML file)
-    add_header alt-svc 'h3-27=":9001"; ma=86400, h3-28=":9001"; ma=86400, h3-29=":9001"; ma=86400';
+    add_header alt-svc 'h3=":9001"; ma=2592000,h3-29=":9001"; ma=2592000,h3-T051=":9001"; ma=2592000,h3-Q050=":9001"; ma=2592000,h3-Q046=":9001"; ma=2592000,h3-Q043=":9001"; ma=2592000,quic=":9001"; ma=2592000; v="46,43"';
+    add_header x-Http3 $http3;     # Sent when http3 was used
 
     root   /static;
 
diff --git a/test/ssl-certificate/mkcert.sh b/test/ssl-certificate/mkcert.sh
new file mode 100755
index 000000000..b1b50e909
--- /dev/null
+++ b/test/ssl-certificate/mkcert.sh
@@ -0,0 +1,8 @@
+#!/bin/sh
+DIR=$(realpath `dirname $0`)
+echo "Generating SSL certificates for localhost in ${DIR} ... ";
+
+set -x
+
+mkcert -install
+mkcert -cert-file ${DIR}/localhost.crt -key-file ${DIR}/localhost.key phantomas.local localhost 127.0.0.1