diff --git a/README.md b/README.md
index ecf4f59b..72a24c4f 100644
--- a/README.md
+++ b/README.md
@@ -87,4 +87,5 @@ Related projects
 * https://github.com/flaviostutz/rtsp-relay
 
 IETF Standard
-* https://tools.ietf.org/html/rfc7826
+* (1.0) https://tools.ietf.org/html/rfc2326
+* (2.0) https://tools.ietf.org/html/rfc7826
diff --git a/go.mod b/go.mod
index 4fbcf2de..62247302 100644
--- a/go.mod
+++ b/go.mod
@@ -5,7 +5,7 @@ go 1.13
 require (
 	github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 // indirect
 	github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d // indirect
-	github.com/aler9/gortsplib v0.0.0-20200503131544-a171a9e328ec
+	github.com/aler9/gortsplib v0.0.0-20200503140554-28603af339e6
 	gopkg.in/alecthomas/kingpin.v2 v2.2.6
 	gortc.io/sdp v0.17.0
 )
diff --git a/go.sum b/go.sum
index ceadf6da..be79ba42 100644
--- a/go.sum
+++ b/go.sum
@@ -2,8 +2,8 @@ github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 h1:JYp7IbQjafo
 github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d h1:UQZhZ2O0vMHr2cI+DC1Mbh0TJxzA3RcLoMsFw+aXw7E=
 github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
-github.com/aler9/gortsplib v0.0.0-20200503131544-a171a9e328ec h1:8giuucZXMi/qEGru9Ic8Zxz6k6Jd2rASkFrVaslwr+s=
-github.com/aler9/gortsplib v0.0.0-20200503131544-a171a9e328ec/go.mod h1:YiIgmmv0ELkWUy11Jj2h5AgfqLCpy8sIX/l9MmS8+uw=
+github.com/aler9/gortsplib v0.0.0-20200503140554-28603af339e6 h1:41jZy+JIekzJXtYdkCsW9ts7D4jubfEVyjMCl7QY2wY=
+github.com/aler9/gortsplib v0.0.0-20200503140554-28603af339e6/go.mod h1:YiIgmmv0ELkWUy11Jj2h5AgfqLCpy8sIX/l9MmS8+uw=
 github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/pkg/errors v0.8.0 h1:WdK/asTD0HN+q6hsWO3/vpuAkAr+tw6aNJNDFFf0+qw=
diff --git a/server-client.go b/server-client.go
index 99feb81d..61e8015e 100644
--- a/server-client.go
+++ b/server-client.go
@@ -227,7 +227,7 @@ func (c *serverClient) writeResError(req *gortsplib.Request, code gortsplib.Stat
 }
 
 func (c *serverClient) handleRequest(req *gortsplib.Request) bool {
-	c.log(req.Method)
+	c.log(string(req.Method))
 
 	cseq, ok := req.Header["CSeq"]
 	if !ok || len(cseq) != 1 {
@@ -258,7 +258,7 @@ func (c *serverClient) handleRequest(req *gortsplib.Request) bool {
 	}()
 
 	switch req.Method {
-	case "OPTIONS":
+	case gortsplib.OPTIONS:
 		// do not check state, since OPTIONS can be requested
 		// in any state
 
@@ -267,19 +267,19 @@ func (c *serverClient) handleRequest(req *gortsplib.Request) bool {
 			Header: gortsplib.Header{
 				"CSeq": []string{cseq[0]},
 				"Public": []string{strings.Join([]string{
-					"DESCRIBE",
-					"ANNOUNCE",
-					"SETUP",
-					"PLAY",
-					"PAUSE",
-					"RECORD",
-					"TEARDOWN",
+					string(gortsplib.DESCRIBE),
+					string(gortsplib.ANNOUNCE),
+					string(gortsplib.SETUP),
+					string(gortsplib.PLAY),
+					string(gortsplib.PAUSE),
+					string(gortsplib.RECORD),
+					string(gortsplib.TEARDOWN),
 				}, ", ")},
 			},
 		})
 		return true
 
-	case "DESCRIBE":
+	case gortsplib.DESCRIBE:
 		if c.state != _CLIENT_STATE_STARTING {
 			c.writeResError(req, gortsplib.StatusBadRequest, fmt.Errorf("client is in state '%d'", c.state))
 			return false
@@ -312,7 +312,7 @@ func (c *serverClient) handleRequest(req *gortsplib.Request) bool {
 		})
 		return true
 
-	case "ANNOUNCE":
+	case gortsplib.ANNOUNCE:
 		if c.state != _CLIENT_STATE_STARTING {
 			c.writeResError(req, gortsplib.StatusBadRequest, fmt.Errorf("client is in state '%d'", c.state))
 			return false
@@ -325,7 +325,7 @@ func (c *serverClient) handleRequest(req *gortsplib.Request) bool {
 				c.as = gortsplib.NewAuthServer(c.p.publishUser, c.p.publishPass)
 			}
 
-			err := c.as.ValidateHeader(req.Header["Authorization"], "ANNOUNCE", req.Url)
+			err := c.as.ValidateHeader(req.Header["Authorization"], gortsplib.ANNOUNCE, req.Url)
 			if err != nil {
 				if !initialRequest {
 					c.log("ERR: Unauthorized: %s", err)
@@ -395,7 +395,7 @@ func (c *serverClient) handleRequest(req *gortsplib.Request) bool {
 		})
 		return true
 
-	case "SETUP":
+	case gortsplib.SETUP:
 		tsRaw, ok := req.Header["Transport"]
 		if !ok || len(tsRaw) != 1 {
 			c.writeResError(req, gortsplib.StatusBadRequest, fmt.Errorf("transport header missing"))
@@ -696,7 +696,7 @@ func (c *serverClient) handleRequest(req *gortsplib.Request) bool {
 			return false
 		}
 
-	case "PLAY":
+	case gortsplib.PLAY:
 		if c.state != _CLIENT_STATE_PRE_PLAY {
 			c.writeResError(req, gortsplib.StatusBadRequest, fmt.Errorf("client is in state '%d'", c.state))
 			return false
@@ -773,7 +773,7 @@ func (c *serverClient) handleRequest(req *gortsplib.Request) bool {
 
 		return true
 
-	case "PAUSE":
+	case gortsplib.PAUSE:
 		if c.state != _CLIENT_STATE_PLAY {
 			c.writeResError(req, gortsplib.StatusBadRequest, fmt.Errorf("client is in state '%d'", c.state))
 			return false
@@ -799,7 +799,7 @@ func (c *serverClient) handleRequest(req *gortsplib.Request) bool {
 		})
 		return true
 
-	case "RECORD":
+	case gortsplib.RECORD:
 		if c.state != _CLIENT_STATE_PRE_RECORD {
 			c.writeResError(req, gortsplib.StatusBadRequest, fmt.Errorf("client is in state '%d'", c.state))
 			return false
@@ -869,7 +869,7 @@ func (c *serverClient) handleRequest(req *gortsplib.Request) bool {
 
 		return true
 
-	case "TEARDOWN":
+	case gortsplib.TEARDOWN:
 		// close connection silently
 		return false