diff --git a/contrib/requirements.txt b/contrib/requirements.txt
index 52fada94ec89..3285db7863c1 100644
--- a/contrib/requirements.txt
+++ b/contrib/requirements.txt
@@ -5,10 +5,11 @@ ecdsa==0.13
 idna==2.6
 jsonrpclib-pelix==0.3.1
 pbkdf2==1.3
-protobuf==3.5.0.post1
+protobuf==3.18.3.post1
 pyaes==1.6.1
 PySocks==1.6.7
 qrcode==5.3
 requests==2.18.4
 six==1.11.0
 urllib3==1.22
+setuptools>=65.5.1 # not directly required, pinned by Snyk to avoid a vulnerability