diff --git a/.travis.yml b/.travis.yml
index d9e4055..a8258a9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -26,7 +26,9 @@
     - d: ldc-0.14.0
       env: [FRONTEND=2.065]
     - d: gdc
+      env: [FRONTEND=2.066]
     - d: gdc-4.9.2
+      env: [FRONTEND=2.066]
     - d: gdc-4.9.0
       env: [FRONTEND=2.065]