diff --git a/Dockerfile b/Dockerfile
index baa4719..bf4db13 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
@@ -19,6 +19,7 @@ RUN \
 	php7-exif \
 	php7-gd \
 	php7-imagick \
+	php7-ldap \
 	php7-mysqli \
 	php7-mysqlnd \
 	php7-pear \
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index 6705a3d..3f29963 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
@@ -22,6 +22,7 @@ RUN \
 	php7-exif \
 	php7-gd \
 	php7-imagick \
+        php7-ldap \
 	php7-mysqli \
 	php7-mysqlnd \
 	php7-pear \
diff --git a/Dockerfile.armhf b/Dockerfile.armhf
index f0a63bb..afcfe4d 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
@@ -22,6 +22,7 @@ RUN \
 	php7-exif \
 	php7-gd \
 	php7-imagick \
+        php7-ldap \
 	php7-mysqli \
 	php7-mysqlnd \
 	php7-pear \
diff --git a/readme-vars.yml b/readme-vars.yml
index 0d4a3fb..8da3057 100644
--- a/readme-vars.yml
+++ b/readme-vars.yml
@@ -43,6 +43,7 @@ app_setup_nginx_reverse_proxy_block: ""
 
 # changelog
 changelogs:
+  - { date: "22.02.19:", desc: "Rebasing to alpine 3.9, add php-ldap." }
   - { date: "28.01.19:", desc: "Rebase to alpine linux 3.8 , add pipeline logic and multi arch." }
   - { date: "25.01.18:", desc: "Rebase to alpine linux 3.7." }
   - { date: "25.05.17:", desc: "Rebase to alpine linux 3.6." }
@@ -51,4 +52,4 @@ changelogs:
   - { date: "23.02.17:", desc: "Rebase to alpine linux 3.5 and nginx." }
   - { date: "14.10.16:", desc: "Add version layer information." }
   - { date: "10.09.16:", desc: "Add layer badges to README." }
-  - { date: "29.08.15:", desc: "Initial Release." }
\ No newline at end of file
+  - { date: "29.08.15:", desc: "Initial Release." }