diff --git a/postorius/Dockerfile b/postorius/Dockerfile
index ec4f3d6..8c99871 100644
--- a/postorius/Dockerfile
+++ b/postorius/Dockerfile
@@ -1,5 +1,5 @@
 # syntax = docker/dockerfile:1.3
-FROM alpine:3.20.0
+FROM alpine:3.20.1
 
 # 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 989ec98..85e75bb 100644
--- a/postorius/Dockerfile.dev
+++ b/postorius/Dockerfile.dev
@@ -1,5 +1,5 @@
 # syntax = docker/dockerfile:1.3
-FROM alpine:3.20.0
+FROM alpine:3.20.1
 
 ARG POSTORIUS_REF
 ARG DJ_MM3_REF
diff --git a/web/Dockerfile b/web/Dockerfile
index 37deeba..81d5f3b 100644
--- a/web/Dockerfile
+++ b/web/Dockerfile
@@ -1,5 +1,5 @@
 # syntax = docker/dockerfile:1.3
-FROM alpine:3.20.0
+FROM alpine:3.20.1
 
 # Add requirements file.
 COPY requirements.txt /tmp/
diff --git a/web/Dockerfile.dev b/web/Dockerfile.dev
index b629441..73f8a76 100644
--- a/web/Dockerfile.dev
+++ b/web/Dockerfile.dev
@@ -1,5 +1,5 @@
 # syntax = docker/dockerfile:1.3
-FROM alpine:3.20.0
+FROM alpine:3.20.1
 
 ARG POSTORIUS_REF
 ARG HYPERKITTY_REF
diff --git a/web/requirements.txt b/web/requirements.txt
index 9d54fee..5bf03cc 100644
--- a/web/requirements.txt
+++ b/web/requirements.txt
@@ -1,4 +1,4 @@
 mailmanclient==3.3.5
 postorius==1.3.10
 hyperkitty==1.3.9
-django-mailman3==1.3.12
\ No newline at end of file
+django-mailman3==1.3.15
\ No newline at end of file