diff --git a/requirements.txt b/requirements.txt
index d8d5200b3..307ad3f5e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ requests
 pyyaml
 jinja2
 deprecation
-protobuf==3.19.3
+protobuf==3.19.4
 watchdog
 
 # some java processing requires xml handling