diff --git a/requirements.txt b/requirements.txt
index e6824aa..6b51b59 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -39,7 +39,7 @@ opt-einsum==3.3.0
 pandas==1.1.0
 Pillow==8.3.2
 progressbar2==3.53.1
-protobuf==3.13.0
+protobuf==3.18.3
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pyflakes==2.2.0