diff --git a/contrib/deterministic-build/requirements-hw.txt b/contrib/deterministic-build/requirements-hw.txt
index 8e0ba52f..ccf04400 100644
--- a/contrib/deterministic-build/requirements-hw.txt
+++ b/contrib/deterministic-build/requirements-hw.txt
@@ -10,7 +10,7 @@ keepkey==4.0.2
 libusb1==1.6.4
 mnemonic==0.18
 pbkdf2==1.3
-protobuf==3.5.1
+protobuf==3.18.3
 pyblake2==1.1.0
 requests==2.18.4
 six==1.11.0
diff --git a/contrib/deterministic-build/requirements.txt b/contrib/deterministic-build/requirements.txt
index e7d8925b..8a0018c3 100644
--- a/contrib/deterministic-build/requirements.txt
+++ b/contrib/deterministic-build/requirements.txt
@@ -5,7 +5,7 @@ ecdsa==0.13
 idna==2.6
 jsonrpclib-pelix==0.3.1
 pbkdf2==1.3
-protobuf==3.5.1
+protobuf==3.18.3
 pyaes==1.6.1
 PySocks==1.6.8
 qrcode==5.3