diff --git a/.travis.yml b/.travis.yml
index 3c74c9f2ec1..5c385dc8960 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -22,7 +22,7 @@ before_script:
 
 script:
   - cargo build
-  - cargo test
+  - cargo test -- --test-threads=1
   - yarn run test
 
 after_success: