diff --git a/requirements.txt b/requirements.txt
index 2a5aae95..6325753f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -62,7 +62,7 @@ Pillow==6.1.0
 plac==0.9.6
 pluggy==0.12.0
 preshed==2.0.1
-protobuf==3.7.1
+protobuf==3.18.3
 psycopg2==2.8.3
 py==1.8.0
 pyasn1==0.4.7