diff --git a/Dockerfile b/Dockerfile
index 47049c8..a0d7754 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ghcr.io/linuxserver/baseimage-alpine-nginx:3.12
+FROM ghcr.io/linuxserver/baseimage-alpine-nginx:3.13
 
 # set version label
 ARG BUILD_DATE
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index 9839e58..eb70c1e 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -1,4 +1,4 @@
-FROM ghcr.io/linuxserver/baseimage-alpine-nginx:arm64v8-3.12
+FROM ghcr.io/linuxserver/baseimage-alpine-nginx:arm64v8-3.13
 
 # set version label
 ARG BUILD_DATE
diff --git a/Dockerfile.armhf b/Dockerfile.armhf
index e6eab63..1859618 100644
--- a/Dockerfile.armhf
+++ b/Dockerfile.armhf
@@ -1,4 +1,4 @@
-FROM ghcr.io/linuxserver/baseimage-alpine-nginx:arm32v7-3.12
+FROM ghcr.io/linuxserver/baseimage-alpine-nginx:arm32v7-3.13
 
 # set version label
 ARG BUILD_DATE
diff --git a/readme-vars.yml b/readme-vars.yml
index 2183b26..8cd9d29 100644
--- a/readme-vars.yml
+++ b/readme-vars.yml
@@ -101,6 +101,7 @@ app_setup_block: |
 
 # changelog
 changelogs:
+  - { date: "23.01.21:", desc: "Rebasing to alpine 3.13." }
   - { date: "12.01.21:", desc: "Remove unused requirement, as of release 0.31.0." }
   - { date: "17.12.20:", desc: "Make APP_URL var required (upstream changes)." }
   - { date: "17.09.20:", desc: "Rebase to alpine 3.12. Fix APP_URL setting. Bump php post max and upload max filesizes to 100MB by default." }