diff --git a/requirements.txt b/requirements.txt
index f7b3311..79691a3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,7 +17,7 @@ numpy==1.17.2
 pandas==0.25.1
 parse==1.14.0
 parsel==1.5.2
-protobuf==3.11.2
+protobuf==3.18.3
 pyasn1==0.4.7
 pyasn1-modules==0.2.6
 pycparser==2.19