diff --git a/.build.yml b/.build.yml
index 661da5a..6582973 100644
--- a/.build.yml
+++ b/.build.yml
@@ -4,14 +4,15 @@ packages:
   - cargo
   - openssl-dev
   - postgresql
+  - sudo
 sources:
   - https://git.e3t.cc/~core/trifid
 tasks:
   - setup: |
-      su root -c "su postgres -c mkdir /var/lib/postgresql/data"
-      su root -c "su postgres -c chmod 0700 /var/lib/postgresql/data"
-      su root -c "su postgres -c initdb -D /var/lib/postgresql/data"
-      su root -c "su postgres -c pg_ctl start -D /var/lib/postgresql/data"
+      sudo -u postgres mkdir /var/lib/postgresql/data
+      sudo -u postgres chmod 0700 /var/lib/postgresql/data
+      sudo -u postgres initdb -D /var/lib/postgresql/data
+      sudo -u postgres pg_ctl start -D /var/lib/postgresql/data
       cd /home/build/trifid
       cargo install sqlx-cli
       sqlx database create