diff --git a/.travis.yml b/.travis.yml
index 0017e1661..311dda19a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,8 +6,9 @@ cache:
     - rocksdb
 
 git:
-  depth: 1
-  submodules_depth: 1
+  # when multiple CI builds are queued, the tested commit needs to be in the last X commits cloned with "--depth X"
+  depth: 10
+  submodules_depth: 10
 
 matrix:
   include: