diff --git a/opencloud/docker/Dockerfile.linux.amd64 b/opencloud/docker/Dockerfile.linux.amd64
index 17f07fac02..89c3e1d01d 100644
--- a/opencloud/docker/Dockerfile.linux.amd64
+++ b/opencloud/docker/Dockerfile.linux.amd64
@@ -1,4 +1,4 @@
-FROM amd64/alpine:3.20
+FROM amd64/alpine:3.21
 
 ARG VERSION=""
 ARG REVISION=""
diff --git a/opencloud/docker/Dockerfile.linux.arm64 b/opencloud/docker/Dockerfile.linux.arm64
index 16fb50073c..d60a0f48a9 100644
--- a/opencloud/docker/Dockerfile.linux.arm64
+++ b/opencloud/docker/Dockerfile.linux.arm64
@@ -1,4 +1,4 @@
-FROM arm64v8/alpine:3.20
+FROM arm64v8/alpine:3.21
 
 ARG VERSION=""
 ARG REVISION=""
diff --git a/opencloud/docker/Dockerfile.linux.debug.amd64 b/opencloud/docker/Dockerfile.linux.debug.amd64
index baf67c89bd..71477fb7a2 100644
--- a/opencloud/docker/Dockerfile.linux.debug.amd64
+++ b/opencloud/docker/Dockerfile.linux.debug.amd64
@@ -1,4 +1,4 @@
-FROM amd64/alpine:latest
+FROM amd64/alpine:edge
 
 ARG VERSION=""
 ARG REVISION=""
diff --git a/opencloud/docker/Dockerfile.multiarch b/opencloud/docker/Dockerfile.multiarch
index a2f3b6cb6b..999dea999d 100644
--- a/opencloud/docker/Dockerfile.multiarch
+++ b/opencloud/docker/Dockerfile.multiarch
@@ -1,4 +1,4 @@
-FROM golang:alpine3.20 AS build
+FROM golang:alpine3.21 AS build
 ARG TARGETOS
 ARG TARGETARCH
 ARG VERSION