diff --git a/raspi_master.yaml b/raspi_master.yaml
index 896447b..fd1f241 100644
--- a/raspi_master.yaml
+++ b/raspi_master.yaml
@@ -52,6 +52,7 @@ steps:
   - create-file: /etc/apt/sources.list
     contents: |+
       deb http://deb.debian.org/debian __RELEASE__ main __FIRMWARE_COMPONENT__ __FIRMWARE_COMPONENT_OLD__
+      deb http://deb.debian.org/debian __RELEASE__-updates main __FIRMWARE_COMPONENT__ __FIRMWARE_COMPONENT_OLD__
       deb http://security.debian.org/debian-security __SECURITY_SUITE__ main __FIRMWARE_COMPONENT__ __FIRMWARE_COMPONENT_OLD__
       __BACKPORTS__