diff --git a/.travis.yml b/.travis.yml
index 0748cb5..7b40a54 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,6 +9,10 @@ matrix:
       env:
       - FEATURES="i128"
       - BUILD_BENCH="true"
+    - rust: 1.0.0
+      script: cargo build
+    - rust: 1.20.0
+      script: cargo test
 
 script:
   - cargo build --verbose --features "$FEATURES"