diff --git a/ecs/Dockerfile b/ecs/Dockerfile
index 2195328..01d0a23 100644
--- a/ecs/Dockerfile
+++ b/ecs/Dockerfile
@@ -37,7 +37,7 @@ RUN mkdir runtime \
     && cp -r /ejabberd/sql lib/ejabberd-*/priv
 
 # Runtime container
-FROM alpine:3.14
+FROM alpine:3.16
 ARG VERSION
 ARG VCS_REF
 ARG BUILD_DATE
diff --git a/mix/Dockerfile b/mix/Dockerfile
index 812ef69..0271abc 100644
--- a/mix/Dockerfile
+++ b/mix/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.14
+FROM alpine:3.16
 LABEL maintainer="ProcessOne <contact@process-one.net>" \
       product="Ejabberd mix development environment"