diff --git a/components/net/fetch/methods.rs b/components/net/fetch/methods.rs
index 42551f98173..457b462bc0b 100644
--- a/components/net/fetch/methods.rs
+++ b/components/net/fetch/methods.rs
@@ -929,11 +929,11 @@ fn is_network_scheme(scheme: &str) -> bool {
 
 /// <https://fetch.spec.whatwg.org/#bad-port>
 fn is_bad_port(port: u16) -> bool {
-    static BAD_PORTS: [u16; 64] = [
+    static BAD_PORTS: [u16; 67] = [
         1, 7, 9, 11, 13, 15, 17, 19, 20, 21, 22, 23, 25, 37, 42, 43, 53, 77, 79, 87, 95, 101, 102,
-        103, 104, 109, 110, 111, 113, 115, 117, 119, 123, 135, 139, 143, 179, 389, 465, 512, 513,
-        514, 515, 526, 530, 531, 532, 540, 556, 563, 587, 601, 636, 993, 995, 2049, 3659, 4045,
-        6000, 6665, 6666, 6667, 6668, 6669,
+        103, 104, 109, 110, 111, 113, 115, 117, 119, 123, 135, 139, 143, 179, 389, 427, 465, 512,
+        513, 514, 515, 526, 530, 531, 532, 540, 548, 556, 563, 587, 601, 636, 993, 995, 2049, 3659,
+        4045, 6000, 6665, 6666, 6667, 6668, 6669, 6697,
     ];
 
     BAD_PORTS.binary_search(&port).is_ok()