diff --git a/postorius/Dockerfile b/postorius/Dockerfile
index c157df9..93eaca8 100644
--- a/postorius/Dockerfile
+++ b/postorius/Dockerfile
@@ -1,5 +1,5 @@
 # syntax = docker/dockerfile:1.3
-FROM alpine:3.19.1
+FROM alpine:3.20.0
 
 # Install packages and dependencies for postorius and hyperkitty Add user for
 # executing apps, change ownership for uwsgi+django files and set execution
diff --git a/postorius/Dockerfile.dev b/postorius/Dockerfile.dev
index fe02d3f..b80a66c 100644
--- a/postorius/Dockerfile.dev
+++ b/postorius/Dockerfile.dev
@@ -1,5 +1,5 @@
 # syntax = docker/dockerfile:1.3
-FROM alpine:3.19.1
+FROM alpine:3.20.0
 
 ARG POSTORIUS_REF
 ARG DJ_MM3_REF