diff --git a/.travis.yml b/.travis.yml
index 0ffc707ba2..96178d17db 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -22,7 +22,6 @@ python:
 os:
   - linux
   - osx
-osx_image: xcode7.3
 branches:
   only:
     - master
diff --git a/appveyor.yml b/appveyor.yml
index 69cf2a03a3..51ac140bb3 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -16,4 +16,4 @@ install:
 clone_depth: 1
 test: off
 deploy: off
-os: Visual Studio 2017 RC
+os: Visual Studio 2017