diff --git a/.travis.yml b/.travis.yml
index cf316bc..6ebb4b5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,19 +2,22 @@ language: rust
 rust: stable
 matrix:
   include:
-    - os: osx
-    - os: osx
+    - os: osx # 10.12
+      env: CGFEATURES="--features elcapitan"
+    - os: osx # 10.10
       osx_image: xcode7.2
-    - os: osx
+      env: CGFEATURES=""
+    - os: osx # 10.13
       osx_image: xcode9.4
+      env: CGFEATURES="--features highsierra,elcapitan"
 
 script:
   - cd core-foundation
   - cargo build --verbose
   - cargo test --verbose -- --nocapture
   - cd ../core-graphics
-  - cargo build --verbose
-  - cargo test --verbose -- --nocapture
+  - cargo build --verbose $CGFEATURES
+  - cargo test --verbose $CGFEATURES -- --nocapture
   - cd ../core-text
   - cargo build --verbose
   - cargo test --verbose -- --nocapture