[CORD-1597]
Version plyprotobuf in pip_requirements.txt

Change-Id: I641a843e68f66cccd927a791e4a76f87c4c8b9da
diff --git a/containers/xos/pip_requirements.txt b/containers/xos/pip_requirements.txt
index 9a29a7c..95983c4 100644
--- a/containers/xos/pip_requirements.txt
+++ b/containers/xos/pip_requirements.txt
@@ -168,4 +168,4 @@
 zope.interface==4.3.3
 redis==2.10.5
 astunparse==1.5.0
-git+https://github.com/sb98052/plyprotobuf
+git+https://github.com/sb98052/plyprotobuf@cee0402b1d8e3c261be789de43aaa8d56b78e743