roll credentials (#90)

diff --git a/.travis.yml b/.travis.yml
index 2d1b60e..67334af 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -62,5 +62,5 @@
       repo: apache/openwhisk-runtime-docker
 env:
   global:
-  - secure: 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
-  - secure: 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
+    - secure: "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"
+    - secure: "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"