diff --git a/requirements.txt b/requirements.txt
index 478067b5..c02a336d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,3 +8,4 @@ ed25519==1.4
 cbor==1.0.0
 cryptography==2.6.1
 scapy>=2.4.3
+protobuf-compiler>=3.0.0