diff --git a/.travis.yml b/.travis.yml
index 2197b32..e6b389b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -21,7 +21,8 @@ matrix:
         - name: minimal-versions
           rust: nightly
           script:
-                - cargo -Z minimal-versions test --verbose --all
+                - cargo -Z minimal-versions generate-lockfile
+                - cargo test --verbose --all
 
 script:
     - cargo build --verbose --all