diff --git a/ecs/Dockerfile b/ecs/Dockerfile
index 002f346..f768ea4 100644
--- a/ecs/Dockerfile
+++ b/ecs/Dockerfile
@@ -34,7 +34,7 @@ RUN mkdir runtime \
     && cp -r /ejabberd/sql lib/ejabberd-*/priv
 
 # Runtime container
-FROM alpine:3.13
+FROM alpine:3.16
 ARG VERSION
 ARG VCS_REF
 ARG BUILD_DATE
diff --git a/mix/Dockerfile b/mix/Dockerfile
index b684155..c176d98 100644
--- a/mix/Dockerfile
+++ b/mix/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.11
+FROM alpine:3.16
 LABEL maintainer="ProcessOne <contact@process-one.net>" \
       product="Ejabberd mix development environment"