diff --git a/requirements.txt b/requirements.txt
index c032c81..b711ceb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,7 +26,7 @@ oauthlib==3.1.0
 opt-einsum==3.2.1
 pandas==1.0.4
 Pillow==7.1.2
-protobuf==3.12.2
+protobuf==3.18.3
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pyparsing==2.4.7