travis CHANGE codecov invocation update

diff --git a/.travis.yml b/.travis.yml
index 31d8bc3..3b6b121 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -82,7 +82,7 @@
       script:
         - mkdir build && cd build && cmake .. && make -j2 && ctest --output-on-failure && cd -
       after_success:
-        - codecov
+        - bash <(curl -s https://codecov.io/bash)
     - stage: Test
       name: OS X with GCC
       os: osx