diff --git a/requirements.txt b/requirements.txt
index 23321be..52ea08e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -53,7 +53,7 @@ opt-einsum==3.3.0
 pandas==1.1.0
 Pillow==7.2.0
 promise==2.3
-protobuf==3.12.2
+protobuf==3.18.3
 psutil==5.7.2
 py-cpuinfo==7.0.0
 pyasn1==0.4.8