diff --git a/requirements.txt b/requirements.txt
index c43226b..2a2f470 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 google-cloud==0.25.0
 google-cloud-dataflow==2.0.0
-protobuf==3.18.3
+protobuf==4.25.8
 psutil==5.6.6
 six==1.10.0