diff --git a/alt_requirements/requirements_bare.txt b/alt_requirements/requirements_bare.txt
index c6a1f46f3fc1..3d803d1ac13f 100644
--- a/alt_requirements/requirements_bare.txt
+++ b/alt_requirements/requirements_bare.txt
@@ -15,3 +15,4 @@ msgpack-python==0.5.4
 packaging==17.1
 ruamel.yaml==0.15.78
 coloredlogs==9.0
+msgpack==0.5.6