diff --git a/requirements.txt b/requirements.txt
index 4cb65e1..21f4c7f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -64,7 +64,7 @@ opt-einsum==3.1.0
 packaging==20.3
 pandas==1.0.3
 Pillow==8.3.2
-protobuf==3.11.4
+protobuf==3.18.3
 pyasn1==0.4.8
 pyasn1-modules==0.2.7
 pycparser==2.20