diff --git a/Dockerfile b/Dockerfile
index cda978d..6ef5d86 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -16,7 +16,8 @@ RUN \
         dbus \
         jq \
         python \
-        wget && \
+        wget \
+        zenity && \
  echo "**** install calibre ****" && \
  mkdir -p \
         /opt/calibre && \
diff --git a/README.md b/README.md
index 83f7cff..adb0393 100644
--- a/README.md
+++ b/README.md
@@ -200,5 +200,6 @@ Once registered you can define the dockerfile to use with `-f Dockerfile.aarch64
 
 ## Versions
 
+* **08.08.19:** - Add zenity for international character support in dialog boxes.
 * **12.07.19:** - Download binary from calibre website instead of github.
 * **29.04.19:** - Initial release.
diff --git a/readme-vars.yml b/readme-vars.yml
index 9219981..c28979a 100644
--- a/readme-vars.yml
+++ b/readme-vars.yml
@@ -64,5 +64,6 @@ app_setup_block: |
   You can access advanced features of the Guacamole remote desktop using `ctrl`+`alt`+`shift` enabling you to use remote copy/paste and different languages.
 # changelog
 changelogs:
+  - { date: "08.08.19:", desc: "Add zenity for international character support in dialog boxes." }
   - { date: "12.07.19:", desc: "Download binary from calibre website instead of github." }
   - { date: "29.04.19:", desc: "Initial release." }