diff --git a/.drone.yml b/.drone.yml
index ae267b5..fd5f76f 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -33,7 +33,7 @@ steps:
   - name: target-cache
     path: /drone/src/target
   commands:
-  - cargo test
+  - cargo test --jobs 1
 
 volumes:
 - name: cache