diff --git a/http3/transport.go b/http3/transport.go
index 93e1a9e3..dac84bb8 100644
--- a/http3/transport.go
+++ b/http3/transport.go
@@ -119,9 +119,6 @@ var (
 	_ io.Closer         = &Transport{}
 )
 
-// Deprecated: RoundTripper was renamed to Transport.
-type RoundTripper = Transport
-
 // ErrNoCachedConn is returned when Transport.OnlyCachedConn is set
 var ErrNoCachedConn = errors.New("http3: no cached connection was available")