diff --git a/Dockerfile b/Dockerfile
index c8c0fc3..c7e1ffb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM lsiobase/alpine.nginx:3.8
+FROM lsiobase/alpine.nginx:3.9
 
 # set version label
 ARG BUILD_DATE
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index ef498df..6feda76 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -1,4 +1,4 @@
-FROM lsiobase/alpine.nginx.arm64:3.8
+FROM lsiobase/alpine.nginx.arm64:3.9
 # Add qemu to build on x86_64 systems
 COPY qemu-aarch64-static /usr/bin
 # set version label
diff --git a/Dockerfile.armhf b/Dockerfile.armhf
index 93d721e..20a88c4 100644
--- a/Dockerfile.armhf
+++ b/Dockerfile.armhf
@@ -1,4 +1,4 @@
-FROM lsiobase/alpine.nginx.armhf:3.8
+FROM lsiobase/alpine.nginx.armhf:3.9
 # Add qemu to build on x86_64 systems
 COPY qemu-arm-static /usr/bin
 # set version label
diff --git a/readme-vars.yml b/readme-vars.yml
index 3fccf54..4ccf9e5 100644
--- a/readme-vars.yml
+++ b/readme-vars.yml
@@ -100,6 +100,7 @@ app_setup_block: |
 
 # changelog
 changelogs:
+  - { date: "22.02.19:", desc: "Rebasing to alpine 3.9." }
   - { date: "31.10.18:", desc: "Rebasing to alpine 3.8" }
   - { date: "05.08.18:", desc: "Migration to live build server." }
   - { date: "13.06.18:", desc: "Initial Release." }