diff --git a/Dockerfile-release.amd64 b/Dockerfile-release.amd64
index 4f2fcbed3..6a1d1db99 100644
--- a/Dockerfile-release.amd64
+++ b/Dockerfile-release.amd64
@@ -1,4 +1,4 @@
-FROM --platform=linux/amd64 gcr.io/distroless/static-debian11
+FROM --platform=linux/amd64 gcr.io/distroless/static-debian11@sha256:9be3fcc6abeaf985b5ecce59451acbcbb15e7be39472320c538d0d55a0834edc
 
 ADD etcd /usr/local/bin/
 ADD etcdctl /usr/local/bin/
diff --git a/Dockerfile-release.arm64 b/Dockerfile-release.arm64
index c93763f66..0f8c3ce42 100644
--- a/Dockerfile-release.arm64
+++ b/Dockerfile-release.arm64
@@ -1,4 +1,4 @@
-FROM --platform=linux/arm64 gcr.io/distroless/static-debian11
+FROM --platform=linux/arm64 gcr.io/distroless/static-debian11@sha256:9be3fcc6abeaf985b5ecce59451acbcbb15e7be39472320c538d0d55a0834edc
 
 ADD etcd /usr/local/bin/
 ADD etcdctl /usr/local/bin/
diff --git a/Dockerfile-release.ppc64le b/Dockerfile-release.ppc64le
index 268e39741..3819bba9a 100644
--- a/Dockerfile-release.ppc64le
+++ b/Dockerfile-release.ppc64le
@@ -1,4 +1,4 @@
-FROM --platform=linux/ppc64le gcr.io/distroless/static-debian11
+FROM --platform=linux/ppc64le gcr.io/distroless/static-debian11@sha256:9be3fcc6abeaf985b5ecce59451acbcbb15e7be39472320c538d0d55a0834edc
 
 ADD etcd /usr/local/bin/
 ADD etcdctl /usr/local/bin/
diff --git a/Dockerfile-release.s390x b/Dockerfile-release.s390x
index 4a280551d..243781447 100644
--- a/Dockerfile-release.s390x
+++ b/Dockerfile-release.s390x
@@ -1,4 +1,4 @@
-FROM --platform=linux/s390x gcr.io/distroless/static-debian11
+FROM --platform=linux/s390x gcr.io/distroless/static-debian11@sha256:9be3fcc6abeaf985b5ecce59451acbcbb15e7be39472320c538d0d55a0834edc
 
 ADD etcd /usr/local/bin/
 ADD etcdctl /usr/local/bin/