diff --git a/azure-cron.yml b/azure-cron.yml
index d50eeced9e..46c6a397c1 100644
--- a/azure-cron.yml
+++ b/azure-cron.yml
@@ -68,6 +68,7 @@ jobs:
           # >= 0.13.43 are built this way.
           for version in $(echo $RELEASES | sed -e 's/ /\n/g'); do
             git checkout "$version"
+            while ! nix-build -A tools -A cached nix; do; done
             LAST_UPDATE=$(echo $VERSIONS | jq -r '.results[] | select(.name == "'${version#v}'") | .last_updated')
             if [[ -n "$LAST_UPDATE" ]]; then
               echo "${version#v} already exists, skipping."