diff --git a/README.md b/README.md
index 89f1492e..59ad24b4 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ quic-go is an implementation of the [QUIC](https://en.wikipedia.org/wiki/QUIC) p
 
 Done:
 
-- Basic protocol with support for QUIC version 30-33
+- Basic protocol with support for QUIC version 30-34
 - HTTP/2 support
 - Crypto (RSA / ECDSA certificates, curve25519 for key exchange, AES-GCM or Chacha20-Poly1305 as stream cipher)
 - Loss detection and retransmission (currently fast retransmission & RTO)
@@ -25,7 +25,6 @@ Major TODOs:
 - Security, especially DOS protections
 - Performance
 - Better packet loss detection
-- Support for QUIC version 34
 - Connection migration
 - QUIC client
 - Public API design
diff --git a/h2quic/server_test.go b/h2quic/server_test.go
index af399dc7..e5d0ab18 100644
--- a/h2quic/server_test.go
+++ b/h2quic/server_test.go
@@ -163,7 +163,7 @@ var _ = Describe("H2 server", func() {
 
 	Context("setting http headers", func() {
 		expected := http.Header{
-			"Alt-Svc":            {`quic=":443"; ma=2592000; v="33,32,31,30"`},
+			"Alt-Svc":            {`quic=":443"; ma=2592000; v="34,33,32,31,30"`},
 			"Alternate-Protocol": {`443:quic`},
 		}
 
diff --git a/protocol/version.go b/protocol/version.go
index 5607c290..8e8c4aa2 100644
--- a/protocol/version.go
+++ b/protocol/version.go
@@ -21,7 +21,7 @@ const (
 
 // SupportedVersions lists the versions that the server supports
 var SupportedVersions = []VersionNumber{
-	Version30, Version31, Version32, Version33,
+	Version30, Version31, Version32, Version33, Version34,
 }
 
 // SupportedVersionsAsTags is needed for the SHLO crypto message
diff --git a/protocol/version_test.go b/protocol/version_test.go
index 89b2ddda..f8cf93de 100644
--- a/protocol/version_test.go
+++ b/protocol/version_test.go
@@ -17,11 +17,11 @@ var _ = Describe("Version", func() {
 	})
 
 	It("has proper tag list", func() {
-		Expect(SupportedVersionsAsTags).To(Equal([]byte("Q030Q031Q032Q033")))
+		Expect(SupportedVersionsAsTags).To(Equal([]byte("Q030Q031Q032Q033Q034")))
 	})
 
 	It("has proper version list", func() {
-		Expect(SupportedVersionsAsString).To(Equal("33,32,31,30"))
+		Expect(SupportedVersionsAsString).To(Equal("34,33,32,31,30"))
 	})
 
 	It("recognizes supported versions", func() {