diff --git a/.travis.yml b/.travis.yml
index a370a2a..dbc3cdb 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,5 +16,6 @@ matrix:
     - os: osx
       osx_image: xcode10.1
       script:
+        - openssl version
         - sh op_test.sh -vv