diff --git a/.travis.yml b/.travis.yml
index e7c2cac01..82627ac49 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -28,8 +28,6 @@ after_script:
 matrix:
   exclude:
     - php: hhvm
-      env: DB=pgsql  # driver currently unsupported by HHVM
-    - php: hhvm
-      env: DB=mysqli # driver currently unsupported by HHVM
+      env: DB=pgsql  # driver for PostgreSQL currently unsupported by HHVM, requires 3rd party dependency
   allow_failures:
     - php: 7.0