diff --git a/protocol.go b/protocol.go
index 0078d7e3..dbf52bb2 100644
--- a/protocol.go
+++ b/protocol.go
@@ -29,7 +29,7 @@ var validChannelNameRegex = regexp.MustCompile(`^[\.a-zA-Z0-9_-]+(#ephemeral)?$`
 
 // IsValidTopicName checks a topic name for correctness
 func IsValidTopicName(name string) bool {
-	if len(name) > 32 || len(name) < 1 {
+	if len(name) > 64 || len(name) < 1 {
 		return false
 	}
 	return validTopicNameRegex.MatchString(name)
@@ -37,7 +37,7 @@ func IsValidTopicName(name string) bool {
 
 // IsValidChannelName checks a channel name for correctness
 func IsValidChannelName(name string) bool {
-	if len(name) > 32 || len(name) < 1 {
+	if len(name) > 64 || len(name) < 1 {
 		return false
 	}
 	return validChannelNameRegex.MatchString(name)