diff --git a/contrib/requirements/requirements.txt b/contrib/requirements/requirements.txt
index c59f61c47..293b44ebc 100644
--- a/contrib/requirements/requirements.txt
+++ b/contrib/requirements/requirements.txt
@@ -2,7 +2,7 @@ pyaes>=0.1a1
 ecdsa>=0.9
 requests
 qrcode
-protobuf>=3.20,<4
+protobuf>=3.19.6,<4
 jsonrpclib-pelix
 PySocks>=1.6.6
 qdarkstyle>=2.8