fix pybrowsers not found
diff --git a/setup.py b/setup.py
index b3fd62178..1ba08c636 100644
--- a/setup.py
+++ b/setup.py
@@ -48,6 +48,7 @@ def run(self):
     "grpcio-status==1.48.2",
     "mock==5.1.0",
     "pylint==3.0.3",
+    "pybrowsers",
 ]
 
 extras_require["pyppeteer"] = [
