From d83cb81fe5f69dc73d8e20d52e9fe2d821f0fb7b Mon Sep 17 00:00:00 2001
From: Thomas A Caswell <tcaswell@gmail.com>
Date: Wed, 24 Oct 2018 10:30:59 -0400
Subject: [PATCH] Backport PR #12615: Fix travis OSX build

---
 .travis.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.travis.yml b/.travis.yml
index 20283d195c29..393dd7826d79 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -103,6 +103,7 @@ before_install: |
     export PATH=/usr/lib/ccache:$PATH
   else
     ci/silence brew update
+    brew uninstall numpy gdal postgis
     brew upgrade python
     brew install ffmpeg imagemagick mplayer ccache
     hash -r