diff --git a/.drone.yml b/.drone.yml
index b79548fdc8..d9b20647d1 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -12,8 +12,9 @@ pipeline:
         environment:
             - CFLAGS=-O0
             - DB_CACHE=/cache
-            - TOX_TESTENV_PASSENV=CFLAGS DB_CACHE
+            - TOX_TESTENV_PASSENV=CFLAGS DB_CACHE BRAINTREE_MERCHANT_ID BRAINTREE_PUBLIC_KEY BRAINTREE_PRIVATE_KEY
             - POSTGRESQL_URI=postgresql://postgres@postgresql:5432/
+        secrets: [ braintree_merchant_id, braintree_public_key, braintree_private_key ]
         commands:
             - echo "[extensions]" >> /root/.hgrc
             - echo "hgext.share =" >> /root/.hgrc