diff --git a/images/aws/bootc-base/Containerfile b/images/aws/bootc-base/Containerfile
index 792bac2..98dd7d7 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:bcaca083cd140cba91384130184b44518f574f36dbf3f7a3ec5edc1b591ff3b6
 
 COPY files/ /
 COPY scripts/ /tmp/scripts/