diff --git a/tests/azure/build-containers.yml b/tests/azure/build-containers.yml
index 5dc3fbfc53ebc401fee164e4f70443b482ca4af5..20d6d7e8f4c9268d0a1170c61c97422b0f0bef70 100644
--- a/tests/azure/build-containers.yml
+++ b/tests/azure/build-containers.yml
@@ -1,8 +1,8 @@
 ---
 
 schedules:
-- cron: "0 0 * * *"
-  displayName: Daily midnight build
+- cron: "0 0 * * 0"
+  displayName: Weekly Sunday midnight build
   branches:
     include:
     - master