diff --git a/.travis.yml b/.travis.yml
index 6ca50d954a2814897c21486852f62df0bdf7886b..4eb0686ac82f63977dbd709a6d48918e9cb6ef79 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,7 @@
 language: cpp
 cache: ccache
 sudo: required
-dist: xenial 
+dist: Bionic 
 services:
   - docker
 os:
@@ -26,7 +26,7 @@ script:
   - exit_code=0
   - .travis/precommit.sh || exit_code=$(( exit_code | $? ))
   - docker run -i --rm -v "$PWD:/py_unittest" paddlepaddle/paddle:latest /bin/bash -c
-    'cd /py_unittest; sh .travis/unittest.sh' || exit_code=$(( exit_code | $? ))
+    'cd /py_unittest; bash .travis/unittest.sh' || exit_code=$(( exit_code | $? ))
     exit $exit_code
 
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