diff --git a/Dockerfile b/Dockerfile
index be7ff67..87166a4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-FROM alpine:3.15 as rootfs-stage
+FROM alpine:3.17 as rootfs-stage
 
 # environment
 ENV REL=edge
@@ -18,8 +18,6 @@ RUN \
   apk add --no-cache \
     bash \
     curl \
-    patch \
-    tar \
     tzdata \
     xz
 
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index 00255c6..9c0defc 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-FROM alpine:3.15 as rootfs-stage
+FROM alpine:3.17 as rootfs-stage
 
 # environment
 ENV REL=edge
@@ -18,8 +18,6 @@ RUN \
   apk add --no-cache \
     bash \
     curl \
-    patch \
-    tar \
     tzdata \
     xz
 
diff --git a/Dockerfile.armhf b/Dockerfile.armhf
index 6d72d07..d77ccb0 100644
--- a/Dockerfile.armhf
+++ b/Dockerfile.armhf
@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-FROM alpine:3.15 as rootfs-stage
+FROM alpine:3.17 as rootfs-stage
 
 # environment
 ENV REL=edge
@@ -18,8 +18,6 @@ RUN \
   apk add --no-cache \
     bash \
     curl \
-    patch \
-    tar \
     tzdata \
     xz