diff --git a/.azure/azure-pipelines.yml b/.azure/azure-pipelines.yml
index a85b6bdcdd..55c7114b34 100644
--- a/.azure/azure-pipelines.yml
+++ b/.azure/azure-pipelines.yml
@@ -1,5 +1,4 @@
 variables:
-  protobuf-version: 3.7.1
   lkg-rust-nightly: "2019-06-16"
 
 trigger: