From b15d2fdb039f5831d889742fc2f32374d85ebcc2 Mon Sep 17 00:00:00 2001
From: Maurizio Branca <m.branca@arduino.cc>
Date: Fri, 9 Aug 2019 10:29:45 +0200
Subject: [PATCH] Upgrade protobuf on the CI

Now we can have the same version on both drone.io and AppVeyor, see PR #329 for the details.
---
 Dockerfiles/CI/Dockerfile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Dockerfiles/CI/Dockerfile b/Dockerfiles/CI/Dockerfile
index 2c82435d83a..55a784a2c81 100644
--- a/Dockerfiles/CI/Dockerfile
+++ b/Dockerfiles/CI/Dockerfile
@@ -5,7 +5,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     unzip \
     && rm -rf /var/lib/apt/lists/*
 
-ENV PROTOBUF_VER 3.8.0
+ENV PROTOBUF_VER 3.9.1
 ENV PATH="/miniconda/bin:${PATH}"
 
 # NOTE: most of the following assume WORDKIR is '/'