diff --git a/images/aws/bootc-base/Containerfile b/images/aws/bootc-base/Containerfile
index 792bac2..35cbd7f 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@sha256:2141d5ab25a00028a53f83dbcf986357b6f8e5a209d6c630e43ede4a16c5bab5
 
 COPY files/ /
 COPY scripts/ /tmp/scripts/