diff --git a/requirements.txt b/requirements.txt
index 6c8484f..47d1758 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -62,7 +62,7 @@ Pillow==8.1.1
 pkg-resources==0.0.0
 portalocker==1.7.0
 promise==2.3
-protobuf==3.12.2
+protobuf==3.18.3
 pyarrow==0.17.1
 pyasn1==0.4.8
 pyasn1-modules==0.2.8