diff --git a/requirements.txt b/requirements.txt
index 78b3cd0..f4f3273 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -33,7 +33,7 @@ packaging==20.3
 pandas==1.0.2
 pkg-resources==0.0.0
 pluggy==0.13.1
-protobuf==3.11.3
+protobuf==3.18.3
 py==1.8.1
 pyasn1==0.4.8
 pyasn1-modules==0.2.8