diff --git a/app/Dockerfile b/app/Dockerfile
index 28293e28..295f9e88 100644
--- a/app/Dockerfile
+++ b/app/Dockerfile
@@ -1,4 +1,7 @@
-FROM python:3-alpine as release
+# Pin to Alpine 3.19 since aws-cli was removed in Alpine 3.20
+# see https://github.com/alpinelinux/docker-alpine/issues/396
+# https://wiki.alpinelinux.org/wiki/Release_Notes_for_Alpine_3.20.0#aws-cli
+FROM python:3-alpine3.19 as release
 
 RUN adduser --system --disabled-password --no-create-home app