diff --git a/.travis.yml b/.travis.yml
index 17d3b8a9..893c0ccf 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -28,184 +28,12 @@ matrix:
     - python: 3.5
   include:
 
-    # default builds for MacOS
-    - os: osx
-      language: generic
-      osx_image: xcode8.2
-      env:
-        - MB_PYTHON_VERSION=2.7
-        - ENABLE_CONTRIB=0
-    - os: osx
-      language: generic
-      osx_image: xcode8.2
-      env:
-        - MB_PYTHON_VERSION=3.4
-        - ENABLE_CONTRIB=0
-    - os: osx
-      language: generic
-      osx_image: xcode8.2
-      env:
-        - MB_PYTHON_VERSION=3.5
-        - ENABLE_CONTRIB=0
-    - os: osx
-      language: generic
-      osx_image: xcode8.2
-      env:
-        - MB_PYTHON_VERSION=3.6
-        - ENABLE_CONTRIB=0
-
-    # Contrib builds for MacOS
-    - os: osx
-      language: generic
-      osx_image: xcode8.2
-      env:
-        - MB_PYTHON_VERSION=2.7
-        - ENABLE_CONTRIB=1
-    - os: osx
-      language: generic
-      osx_image: xcode8.2
-      env:
-        - MB_PYTHON_VERSION=3.4
-        - ENABLE_CONTRIB=1
-    - os: osx
-      language: generic
-      osx_image: xcode8.2
-      env:
-        - MB_PYTHON_VERSION=3.5
-        - ENABLE_CONTRIB=1
-    - os: osx
-      language: generic
-      osx_image: xcode8.2
-      env:
-        - MB_PYTHON_VERSION=3.6
-        - ENABLE_CONTRIB=1
-
     # default builds for Linux
-    - os: linux
-      env:
-        - MB_PYTHON_VERSION=2.7
-        - DOCKER_IMAGE=quay.io/pypa/manylinux1_x86_64
-        - ENABLE_CONTRIB=0
-    - os: linux
-      env:
-        - MB_PYTHON_VERSION=2.7
-        - DOCKER_IMAGE=quay.io/pypa/manylinux1_x86_64
-        - UNICODE_WIDTH=16
-        - ENABLE_CONTRIB=0
-    - os: linux
-      env:
-        - MB_PYTHON_VERSION=2.7
-        - DOCKER_IMAGE=quay.io/pypa/manylinux1_i686
-        - PLAT=i686
-        - ENABLE_CONTRIB=0
-    - os: linux
-      env:
-        - MB_PYTHON_VERSION=2.7
-        - DOCKER_IMAGE=quay.io/pypa/manylinux1_i686
-        - PLAT=i686
-        - UNICODE_WIDTH=16
-        - ENABLE_CONTRIB=0
-    - os: linux
-      env:
-        - MB_PYTHON_VERSION=3.4
-        - DOCKER_IMAGE=quay.io/pypa/manylinux1_x86_64
-        - ENABLE_CONTRIB=0
-    - os: linux
-      env:
-        - MB_PYTHON_VERSION=3.4
-        - DOCKER_IMAGE=quay.io/pypa/manylinux1_i686
-        - PLAT=i686
-        - ENABLE_CONTRIB=0
     - os: linux
       env:
         - MB_PYTHON_VERSION=3.5
         - DOCKER_IMAGE=quay.io/pypa/manylinux1_x86_64
         - ENABLE_CONTRIB=0
-    - os: linux
-      env:
-        - MB_PYTHON_VERSION=3.5
-        - DOCKER_IMAGE=quay.io/pypa/manylinux1_i686
-        - PLAT=i686
-        - ENABLE_CONTRIB=0
-    - os: linux
-      env:
-        - MB_PYTHON_VERSION=3.6
-        - DOCKER_IMAGE=quay.io/pypa/manylinux1_x86_64
-        - ENABLE_CONTRIB=0
-        - BUILD_DEPENDS=numpy==1.11.3
-        - TEST_DEPENDS=numpy==1.11.3
-    - os: linux
-      env:
-        - MB_PYTHON_VERSION=3.6
-        - DOCKER_IMAGE=quay.io/pypa/manylinux1_i686
-        - PLAT=i686
-        - ENABLE_CONTRIB=0
-        - BUILD_DEPENDS=numpy==1.11.3
-        - TEST_DEPENDS=numpy==1.11.3
-
-    # contrib builds for Linux
-    - os: linux
-      env:
-        - MB_PYTHON_VERSION=2.7
-        - DOCKER_IMAGE=quay.io/pypa/manylinux1_x86_64
-        - ENABLE_CONTRIB=1
-    - os: linux
-      env:
-        - MB_PYTHON_VERSION=2.7
-        - DOCKER_IMAGE=quay.io/pypa/manylinux1_x86_64
-        - UNICODE_WIDTH=16
-        - ENABLE_CONTRIB=1
-    - os: linux
-      env:
-        - MB_PYTHON_VERSION=2.7
-        - DOCKER_IMAGE=quay.io/pypa/manylinux1_i686
-        - PLAT=i686
-        - ENABLE_CONTRIB=1
-    - os: linux
-      env:
-        - MB_PYTHON_VERSION=2.7
-        - DOCKER_IMAGE=quay.io/pypa/manylinux1_i686
-        - PLAT=i686
-        - UNICODE_WIDTH=16
-        - ENABLE_CONTRIB=1
-    - os: linux
-      env:
-        - MB_PYTHON_VERSION=3.4
-        - DOCKER_IMAGE=quay.io/pypa/manylinux1_x86_64
-        - ENABLE_CONTRIB=1
-    - os: linux
-      env:
-        - MB_PYTHON_VERSION=3.4
-        - DOCKER_IMAGE=quay.io/pypa/manylinux1_i686
-        - PLAT=i686
-        - ENABLE_CONTRIB=1
-    - os: linux
-      env:
-        - MB_PYTHON_VERSION=3.5
-        - DOCKER_IMAGE=quay.io/pypa/manylinux1_x86_64
-        - ENABLE_CONTRIB=1
-    - os: linux
-      env:
-        - MB_PYTHON_VERSION=3.5
-        - DOCKER_IMAGE=quay.io/pypa/manylinux1_i686
-        - PLAT=i686
-        - ENABLE_CONTRIB=1
-    - os: linux
-      env:
-        - MB_PYTHON_VERSION=3.6
-        - DOCKER_IMAGE=quay.io/pypa/manylinux1_x86_64
-        - BUILD_DEPENDS=numpy==1.11.3
-        - TEST_DEPENDS=numpy==1.11.3
-        - ENABLE_CONTRIB=1
-
-    - os: linux
-      env:
-        - MB_PYTHON_VERSION=3.6
-        - DOCKER_IMAGE=quay.io/pypa/manylinux1_i686
-        - PLAT=i686
-        - BUILD_DEPENDS=numpy==1.11.3
-        - TEST_DEPENDS=numpy==1.11.3
-        - ENABLE_CONTRIB=1
 
 before_install:
     - echo $ENABLE_CONTRIB > contrib.enabled