diff --git a/common/protocol/quic/qtls_go118.go b/common/protocol/quic/qtls_go118.go
new file mode 100644
index 000000000..429037dfc
--- /dev/null
+++ b/common/protocol/quic/qtls_go118.go
@@ -0,0 +1,18 @@
+//go:build go1.18 && !go1.19
+
+package quic
+
+import (
+	"crypto/cipher"
+
+	"github.com/quic-go/qtls-go1-18"
+)
+
+type (
+	// A CipherSuiteTLS13 is a cipher suite for TLS 1.3
+	CipherSuiteTLS13 = qtls.CipherSuiteTLS13
+)
+
+func AEADAESGCMTLS13(key, fixedNonce []byte) cipher.AEAD {
+	return qtls.AEADAESGCMTLS13(key, fixedNonce)
+}
diff --git a/go.mod b/go.mod
index d78d882da..2bf198e69 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/v2fly/v2ray-core/v5
 
-go 1.19
+go 1.18
 
 require (
 	github.com/adrg/xdg v0.4.0
@@ -16,6 +16,7 @@ require (
 	github.com/mustafaturan/bus v1.0.2
 	github.com/pelletier/go-toml v1.9.5
 	github.com/pires/go-proxyproto v0.6.2
+	github.com/quic-go/qtls-go1-18 v0.2.0
 	github.com/quic-go/qtls-go1-19 v0.2.1
 	github.com/quic-go/qtls-go1-20 v0.1.1
 	github.com/quic-go/quic-go v0.32.0
@@ -65,7 +66,6 @@ require (
 	github.com/pion/udp v0.1.4 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/quic-go/qtls-go1-18 v0.2.0 // indirect
 	github.com/riobard/go-bloom v0.0.0-20200614022211-cdc8013cb5b3 // indirect
 	github.com/secure-io/siv-go v0.0.0-20180922214919-5ff40651e2c4 // indirect
 	github.com/xtaci/smux v1.5.15 // indirect