diff --git a/.travis.yml b/.travis.yml
index 0050359c559264de8d6d016b9a2f43ab981fdc95..c977bf744d751c8a02922b93db62130a9d11e915 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -85,7 +85,7 @@ matrix:
       - $HOME/.macports-ci-ccache
 # osx serial macports debug variant
   - os: osx
-    osx_image: xcode8.2
+    osx_image: xcode8.3
     env: PLUMED_MACPORTS="plumed +allmodules"
     cache:
       directories: