diff --git a/.travis.yml b/.travis.yml
index 089ccc5..d4704bc 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,7 +7,7 @@ matrix:
   allow_failures:
     - rust: nightly
 script:
-  - cargo test -p ethereum-types --no-default-futures
-  - cargo test -p tests
+  - cargo test -p ethereum-types --no-default-features --release
+  - cargo test -p tests --release
 env:
   - RUST_LOG=quickcheck