diff --git a/requirements.txt b/requirements.txt
index 90cfe0b..7d51201 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ gTTS-token==1.1.3
 idna==2.8
 ifaddr==0.1.6
 pkg-resources==0.0.0
-protobuf==3.11.2
+protobuf==3.18.3
 PyChromecast==4.1.0
 requests==2.22.0
 six==1.13.0