diff --git a/requirements.txt b/requirements.txt
index 40dbf84..2631c24 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,3 +13,4 @@ coloredlogs
 pylibmc
 wacky
 Routes
+protobuf
diff --git a/requirements_win.txt b/requirements_win.txt
index 89527fe..cbdbcde 100644
--- a/requirements_win.txt
+++ b/requirements_win.txt
@@ -12,3 +12,4 @@ inflection
 coloredlogs
 wacky
 Routes
+protobuf