diff --git a/.travis.yml b/.travis.yml
index b701bd6..a50cac7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,7 +16,9 @@ env:
     - CRATE_NAME=minrs
 
     # default job
-    - TARGET=x86_64-unknown-linux-gnu
+    - TARGET_DEFAULT_LINUX=x86_64-unknown-linux-gnu
+    - TARGET_DEFAULT_OSX=x86_64-apple-darwin
+    - TARGET="$TARGET_DEFAULT_LINUX"
 
 matrix:
   # TODO These are all the build jobs. Adjust as necessary. Comment out what you
@@ -25,13 +27,13 @@ matrix:
     # Linux
     - env: TARGET=i686-unknown-linux-gnu
     - env: TARGET=i686-unknown-linux-musl
-    # - env: TARGET=x86_64-unknown-linux-gnu  # this is the default job
+    # - env: TARGET="$TARGET_DEFAULT_LINUX"
     - env: TARGET=x86_64-unknown-linux-musl
 
     # OSX
     - env: TARGET=i686-apple-darwin
       os: osx
-    - env: TARGET=x86_64-apple-darwin
+    - env: TARGET="$TARGET_DEFAULT_OSX"
       os: osx
 
     # *BSD
@@ -52,18 +54,31 @@ matrix:
     - env: TARGET=s390x-unknown-linux-gnu DISABLE_TESTS=1
 
     # Testing other channels
-    - env: TARGET=x86_64-unknown-linux-gnu
+    - env: TARGET="$TARGET_DEFAULT_LINUX"
       rust: nightly
-    - env: TARGET=x86_64-apple-darwin
+    - env: TARGET="$TARGET_DEFAULT_OSX"
       os: osx
       rust: nightly
     - env: TARGET=i686-apple-darwin
       os: osx
       rust: nightly
+    - env: TARGET=aarch64-apple-ios
+      os: osx
+      rust: nightly
+    - env: TARGET=arm-linux-androideabi
+      rust: nightly
+    - env: TARGET=wasm32-unknown-emscripten
+      rust: nightly
+    - env: TARGET=asmjs-unknown-emscripten
+      rust: nightly
 
   allow_failures:
     - env: TARGET=x86_64-unknown-netbsd DISABLE_TESTS=1
     - env: TARGET=i686-apple-darwin
+    - env: TARGET=aarch64-apple-ios
+    - env: TARGET=arm-linux-androideabi
+    - env: TARGET=wasm32-unknown-emscripten
+    - env: TARGET=asmjs-unknown-emscripten
 
 install:
   - set -e
diff --git a/ci/install.sh b/ci/install.sh
index 4093c9b..1df4a63 100644
--- a/ci/install.sh
+++ b/ci/install.sh
@@ -6,19 +6,30 @@ main() {
 
     local target=
     if [ $TRAVIS_OS_NAME = linux ]; then
-        target=x86_64-unknown-linux-gnu
+        target=$TARGET_DEFAULT_LINUX
     else
-        target=x86_64-apple-darwin
+        target=$TARGET_DEFAULT_OSX
     fi
 
-    # TODO At some point you'll probably want to use a newer release of `cross`,
-    # simply change the argument to `--tag`.
+    local tag="$(git ls-remote --tags --refs --exit-code https://github.com/japaric/cross | cut -d/ -f3 | tail -n1)"
+    echo cross version: $tag
     curl -LSfs https://japaric.github.io/trust/install.sh | \
         sh -s -- \
            --force \
            --git japaric/cross \
-           --tag v0.1.4 \
+           --tag $tag \
            --target $target
+
+    echo $TARGET
+    echo $TARGET_DEFAULT_LINUX
+    echo $TARGET_DEFAULT_OSX
+    export PATH="$HOME/.cargo/bin:$PATH"
+    which rustup || true
+    whereis rustup || true
+    rustup --version || true
+    if [ $TARGET = $TARGET_DEFAULT ] || [ $TARGET =  ]; then
+        rustup target add $TARGET
+    fi
 }
 
 main