diff --git a/.travis.yml b/.travis.yml
index 2908bbb..29d2c0f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,6 +15,7 @@ matrix:
       rust: stable
       env: TARGET=i686-unknown-linux-musl
     - os: osx
+      osx_image: xcode11.4 # Catalina
       rust: stable
       env: TARGET=x86_64-apple-darwin
     - os: linux
diff --git a/ci/script.bash b/ci/script.bash
index 5316210..693073b 100755
--- a/ci/script.bash
+++ b/ci/script.bash
@@ -7,5 +7,5 @@ cargo build --target "$TARGET" --verbose
 
 # We cannot run arm executables on linux
 if [[ $TARGET != arm-unknown-linux-* ]]; then
-    cargo test --target "$TARGET" --verbose
+    cargo test --target "$TARGET" --verbose --release
 fi