run openwhisk installation in new shell
diff --git a/.travis.yml b/.travis.yml
index 957ada5..8ef716b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -42,7 +42,7 @@
   - easy_install --version
   - pip --version
   - tox --version
-  - ./travis/setup.sh
+  - bash -c ./travis/setup.sh
 script:
   - tox -v
 after_failure: