1 files changed, 1 insertions, 0 deletions
diff --git a/setup.py b/setup.py
index 6ba9391e..954327e9 100644
--- a/setup.py
+++ b/setup.py
@@ -70,6 +70,7 @@ setup(
         "kaitaistruct>=0.7,<0.9",
         "ldap3>=2.5,<2.6",
         "passlib>=1.6.5, <1.8",
+        "protobuf>=3.6.0, <3.7",
         "pyasn1>=0.3.1,<0.5",
         "pyOpenSSL>=17.5,<18.1",
         "pyparsing>=2.1.3, <2.3",