diff --git a/.travis.yml b/.travis.yml
index 0dcc21dd07..358686a767 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -20,7 +20,6 @@ python:
 os:
   - linux
   - osx
-osx_image: xcode7.3
 branches:
   only:
     - master
diff --git a/appveyor.yml b/appveyor.yml
index 3a702b88c1..9744c940ec 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -14,4 +14,4 @@ install:
 clone_depth: 1
 test: off
 deploy: off
-os: Visual Studio 2017 RC
+os: Visual Studio 2017