--- a/src/http/v3/ngx_http_v3_streams.c
+++ b/src/http/v3/ngx_http_v3_streams.c
@@ -29,6 +29,8 @@ typedef struct {
 } ngx_http_v3_push_t;
 
 
+static void ngx_http_v3_keepalive_handler(ngx_event_t *ev);
+static void ngx_http_v3_cleanup_session(void *data);
 static void ngx_http_v3_close_uni_stream(ngx_connection_t *c);
 static void ngx_http_v3_read_uni_stream_type(ngx_event_t *rev);
 static void ngx_http_v3_uni_read_handler(ngx_event_t *rev);
@@ -43,6 +45,7 @@ ngx_int_t
 ngx_http_v3_init_session(ngx_connection_t *c)
 {
     ngx_connection_t          *pc;
+    ngx_pool_cleanup_t        *cln;
     ngx_http_connection_t     *phc;
     ngx_http_v3_connection_t  *h3c;
 
@@ -67,12 +70,50 @@ ngx_http_v3_init_session(ngx_connection_
     ngx_queue_init(&h3c->blocked);
     ngx_queue_init(&h3c->pushing);
 
+    h3c->keepalive.log = pc->log;
+    h3c->keepalive.data = pc;
+    h3c->keepalive.handler = ngx_http_v3_keepalive_handler;
+    h3c->keepalive.cancelable = 1;
+
+    cln = ngx_pool_cleanup_add(pc->pool, 0);
+    if (cln == NULL) {
+        return NGX_ERROR;
+    }
+
+    cln->handler = ngx_http_v3_cleanup_session;
+    cln->data = h3c;
+
     pc->data = h3c;
 
     return ngx_http_v3_send_settings(c);
 }
 
 
+static void
+ngx_http_v3_keepalive_handler(ngx_event_t *ev)
+{
+    ngx_connection_t  *c;
+
+    c = ev->data;
+
+    ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 keepalive handler");
+
+    ngx_quic_finalize_connection(c, NGX_HTTP_V3_ERR_NO_ERROR,
+                                 "keepalive timeout");
+}
+
+
+static void
+ngx_http_v3_cleanup_session(void *data)
+{
+    ngx_http_v3_connection_t  *h3c = data;
+
+    if (h3c->keepalive.timer_set) {
+        ngx_del_timer(&h3c->keepalive);
+    }
+}
+
+
 void
 ngx_http_v3_init_uni_stream(ngx_connection_t *c)
 {