diff --git a/Auth.php b/Auth.php
index 4bc1990..9afbebe 100644
--- a/Auth.php
+++ b/Auth.php
@@ -2,7 +2,7 @@
 
 /**
  * webtrees: online genealogy
- * Copyright (C) 2021 webtrees development team
+ * Copyright (C) 2023 webtrees development team
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation, either version 3 of the License, or
@@ -214,7 +214,7 @@ public static function logout(): void
 
     /**
      * @param ModuleInterface $module
-     * @param string          $interface
+     * @param class-string<T> $interface
      * @param Tree            $tree
      * @param UserInterface   $user
      *
diff --git a/Dockerfile b/Dockerfile
index 87bcc3d..656f518 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,7 +5,7 @@ ENV DEBIAN_FRONTEND="noninteractive" HOME="/root" LC_ALL="C.UTF-8" LANG="en_US.U
 ENV supervisor_conf /etc/supervisor/supervisord.conf
 ENV security_conf /etc/apache2/conf-available/security.conf
 ENV start_scripts_path /bin
-ENV WT_VERSION="2.1.16"
+ENV WT_VERSION="2.1.17"
 
 # Install and activate necessary software
 RUN apt-get update -qq && apt-get upgrade -qy && apt-get install -qy \
diff --git a/Dockerfile.github b/Dockerfile.github
index 01244de..fe5ae55 100644
--- a/Dockerfile.github
+++ b/Dockerfile.github
@@ -2,7 +2,7 @@ ARG ARCH=amd64
 
 FROM ${ARCH}/ubuntu:22.04
 
-ARG WT_VERSION=2.1.16
+ARG WT_VERSION=2.1.17
 ARG QEMU_ARCH=x86_64
 
 ARG BUILD_DATE=2021-01-01T08:00:00Z
diff --git a/README.md b/README.md
index 429f03c..60e6388 100644
--- a/README.md
+++ b/README.md
@@ -168,3 +168,5 @@ This image contains now the necessary libraries to optionally also select Postgr
 * **2022/12/15:** Webtrees 2.1.13
 * **2022/12/24:** Webtrees 2.1.14
 * **2022/12/25:** Webtrees 2.1.15
+* **2023/01/16:** Webtrees 2.1.16
+* **2023/07/15:** Webtrees 2.1.17