diff --git a/httpbin/websocket/websocket.go b/httpbin/websocket/websocket.go
index ebac941e..8a6643be 100644
--- a/httpbin/websocket/websocket.go
+++ b/httpbin/websocket/websocket.go
@@ -115,9 +115,6 @@ func (s *WebSocket) Handshake() error {
 		panic("websocket: handshake already completed")
 	}
 
-	if strings.ToLower(s.r.Header.Get("Connection")) != "upgrade" {
-		return fmt.Errorf("missing required `Connection: upgrade` header")
-	}
 	if strings.ToLower(s.r.Header.Get("Upgrade")) != "websocket" {
 		return fmt.Errorf("missing required `Upgrade: websocket` header")
 	}
diff --git a/httpbin/websocket/websocket_test.go b/httpbin/websocket/websocket_test.go
index d6c02d10..6d848712 100644
--- a/httpbin/websocket/websocket_test.go
+++ b/httpbin/websocket/websocket_test.go
@@ -51,22 +51,22 @@ func TestHandshake(t *testing.T) {
 			},
 			wantStatus: http.StatusSwitchingProtocols,
 		},
-		"missing Connection header": {
+		"missing Connection header is okay": {
 			reqHeaders: map[string]string{
 				"Upgrade":               "websocket",
 				"Sec-WebSocket-Key":     "dGhlIHNhbXBsZSBub25jZQ==",
 				"Sec-WebSocket-Version": "13",
 			},
-			wantStatus: http.StatusBadRequest,
+			wantStatus: http.StatusSwitchingProtocols,
 		},
-		"incorrect Connection header": {
+		"incorrect Connection header is also okay": {
 			reqHeaders: map[string]string{
-				"Connection":            "close",
+				"Connection":            "foo",
 				"Upgrade":               "websocket",
 				"Sec-WebSocket-Key":     "dGhlIHNhbXBsZSBub25jZQ==",
 				"Sec-WebSocket-Version": "13",
 			},
-			wantStatus: http.StatusBadRequest,
+			wantStatus: http.StatusSwitchingProtocols,
 		},
 		"missing Upgrade header": {
 			reqHeaders: map[string]string{