diff --git a/trillian/examples/deployment/docker/envsubst/Dockerfile b/trillian/examples/deployment/docker/envsubst/Dockerfile
index cbd92fa8aa..bee830b4e3 100644
--- a/trillian/examples/deployment/docker/envsubst/Dockerfile
+++ b/trillian/examples/deployment/docker/envsubst/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.20@sha256:77726ef6b57ddf65bb551896826ec38bc3e53f75cdde31354fbffb4f25238ebd
+FROM alpine:3.20@sha256:b89d9c93e9ed3597455c90a0b88a8bbb5cb7188438f70953fede212a0c4394e0
 
 RUN apk add --no-cache gettext