diff --git a/requirements.txt b/requirements.txt
index 87386cfbbd03393c8b5936f5510b86c8cf25557f..0e51d7ae6d53703e2b485be85956127ca3430a7c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,3 +15,4 @@ setupext-janitor>=1.1.2
 toposort==1.5
 vcdvcd==1.0.5
 wget==3.2
+protobuf==3.20.1
\ No newline at end of file