diff --git a/.build.yml b/.build.yml
index 76281c0..75a809b 100644
--- a/.build.yml
+++ b/.build.yml
@@ -8,10 +8,10 @@ sources:
 environment:
   GO111MODULE: 'on'
 tasks:
-  - setup: |
-      cd activitypub && go mod download
   - tests: |
-      cd activitypub && make test
+      cd activitypub
+      go mod vendor
+      make test
   - coverage: |
       set -a +x
       cd activitypub && make coverage