diff --git a/requirements.txt b/requirements.txt
index 1c74a9e..1b8fa7c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -69,7 +69,7 @@ panphon==0.15
 parsel==1.5.2
 passlib==1.7.1
 Protego==0.1.16
-protobuf==3.9.1
+protobuf==3.18.3
 psycopg2==2.8.4
 pyannote.algorithms==0.8
 pyannote.core==3.7.1