diff --git a/requirements.txt b/requirements.txt
index 2ccea68..4583c31 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -64,7 +64,7 @@ pandas==1.0.3
 Pillow==7.1.0
 plac==1.1.3
 preshed==3.0.2
-protobuf==3.11.3
+protobuf==3.18.3
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 PyAudio==0.2.11