update

Author: Jeff Whitaker

.travis.yml

@@ -88,18 +88,7 @@ matrix:
       language: generic
       env:
         - MB_PYTHON_VERSION=3.6
-    - os: osx
-      language: generic
-      env:
-        - MB_PYTHON_VERSION=3.7
-        - NP_BUILD_DEP="1.14.5"
-        - NP_TEST_DEP="1.14.5"
-    - os: osx
-      language: generic
-      env:
-        - MB_PYTHON_VERSION=3.8
-        - NP_BUILD_DEP="1.17.3"
-        - NP_TEST_DEP="1.17.3"
+        - MB_PYTHON_OSX_VER=10.9
     - os: osx
       language: generic
       env: