diff --git a/deps/ngtcp2/ngtcp2/lib/includes/ngtcp2/version.h b/deps/ngtcp2/ngtcp2/lib/includes/ngtcp2/version.h
index 88e0107a55ac85..a1f09e7148bd84 100644
--- a/deps/ngtcp2/ngtcp2/lib/includes/ngtcp2/version.h
+++ b/deps/ngtcp2/ngtcp2/lib/includes/ngtcp2/version.h
@@ -36,7 +36,7 @@
  *
  * Version number of the ngtcp2 library release.
  */
-#define NGTCP2_VERSION "1.22.0"
+#define NGTCP2_VERSION "1.22.1"
 
 /**
  * @macro
@@ -46,6 +46,6 @@
  * number, 8 bits for minor and 8 bits for patch. Version 1.2.3
  * becomes 0x010203.
  */
-#define NGTCP2_VERSION_NUM 0x011600
+#define NGTCP2_VERSION_NUM 0x011601
 
 #endif /* !defined(NGTCP2_VERSION_H) */
diff --git a/deps/ngtcp2/ngtcp2/lib/ngtcp2_qlog.c b/deps/ngtcp2/ngtcp2/lib/ngtcp2_qlog.c
index ed08eb1b5ac2b4..42609481ec4757 100644
--- a/deps/ngtcp2/ngtcp2/lib/ngtcp2_qlog.c
+++ b/deps/ngtcp2/ngtcp2/lib/ngtcp2_qlog.c
@@ -902,7 +902,7 @@ void ngtcp2_qlog_pkt_sent_end(ngtcp2_qlog *qlog, const ngtcp2_pkt_hd *hd,
 void ngtcp2_qlog_parameters_set_transport_params(
   ngtcp2_qlog *qlog, const ngtcp2_transport_params *params, int server,
   ngtcp2_qlog_side side) {
-  uint8_t buf[1024];
+  uint8_t buf[2048];
   uint8_t *p = buf;
   const ngtcp2_preferred_addr *paddr;
   const ngtcp2_sockaddr_in *sa_in;