diff --git a/images/aws/bootc-base/Containerfile b/images/aws/bootc-base/Containerfile
index 792bac2..de41bc8 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@sha256:512b14998c7e625a8b6fe73dbe1cc4fcda4cd63965029089e40015311eb59521
 
 COPY files/ /
 COPY scripts/ /tmp/scripts/