diff --git a/images/aws/bootc-base/Containerfile b/images/aws/bootc-base/Containerfile
index 792bac2..18124b0 100644
--- a/images/aws/bootc-base/Containerfile
+++ b/images/aws/bootc-base/Containerfile
@@ -1,4 +1,4 @@
-FROM quay.io/centos-bootc/centos-bootc:stream9
+FROM quay.io/centos-bootc/centos-bootc:stream9@sha256:c79fbbb496702efdbe3235471f868de27f4263c19ead7757d8dfae76c2bf9a93
 
 COPY files/ /
 COPY scripts/ /tmp/scripts/