diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0edfe8c..8b9983e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [v5.0.8-1] - 2024-03-07
+### Changed
+- Update Redmine to version 5.0.8
+- Update CAS plugin to version 2.1.2
+  - This will fix a bug where the user data was not updated on login (#126)
+  - This will also fix an error response when a ticket parameter inside an HTTP POST body was mistaken to be a CAS service ticket parameter
+
 ## [v5.0.5-4] - 2024-01-24
 ### Fixed
 - Add bigdecimal bundle as a dependency of the `helpdesk` plugin
diff --git a/Dockerfile b/Dockerfile
index 7e2e27b..0b3cdb5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,7 @@
-# registry.cloudogu.com/official/redmine
 FROM registry.cloudogu.com/official/base:3.17.3-2
 
 LABEL NAME="official/redmine" \
-   VERSION="5.0.5-4" \
+   VERSION="5.0.8-1" \
    maintainer="hello@cloudogu.com"
 
 ENV USER=redmine \
@@ -16,8 +15,8 @@ ENV USER=redmine \
     RUBYCASVERSION=2.4.0 \
     RUBYCAS_TARGZ_SHA256=1fb29cf6a2331dc91b7cdca3d9b231866a4cfc36c4c5f03cedd89c74cc5aae05 \
     # Redmine version
-    REDMINE_VERSION=5.0.5 \
-    REDMINE_TARGZ_SHA256=a89ad1c4bb9bf025e6527c77ab18c8faf7749c94a975caf2cfdbba00eb12a481 \
+    REDMINE_VERSION=5.0.8 \
+    REDMINE_TARGZ_SHA256=1eda410840a21ab0f6965a378699a65588b6785db95eaf6494c6c9bc51b5bf6e \
     REDMINE_PATH="/usr/share/webapps/redmine" \
     # Rest-API-Plugin version
     EXTENDED_REST_API_PLUGIN_VERSION=1.1.0 \
@@ -28,8 +27,8 @@ ENV USER=redmine \
     ACTIVERECORD_TARGZ_SHA256=6e9bdeef6ddaef3b997251418647bd17b11bb10d36b7a2ad27f387cb511858ea \
     ACTIVERECORD_SESSION_STORE_PLUGIN_PATH="/usr/share/webapps/redmine/defaultPlugins/redmine_activerecord_session_store" \
     # CAS-Plugin version
-    CAS_PLUGIN_VERSION=2.1.0 \
-    CAS_PLUGIN_TARGZ_SHA256=062207dfc5ebc624458e25e41da8bfbebcf8d962f60b442a957c4617017e2090 \
+    CAS_PLUGIN_VERSION=2.1.2 \
+    CAS_PLUGIN_TARGZ_SHA256=0a0234fca4224aa3da47e60fb20f633a6a11f328dfdac11c33548bfbd6dd1baf \
     CAS_PLUGIN_PATH="/usr/share/webapps/redmine/defaultPlugins/redmine_cas" \
     # Cloudogu theme version
     CLOUDOGU_THEME_VERSION=2.15.0-2 \
@@ -132,8 +131,9 @@ RUN set -eux -o pipefail \
  && bundle config set --local without 'development test' \
  && bundle install \
  && gem install puma \
- && gem install bigdecimal -v 3.1.5 \
- && bundle add bigdecimal --version=3.1.5 \
+ # Do not remove the dependency on bigdecimal. Many tools rely on bigdecimal, and it may not be possible to install it in a running dogu
+ && gem install bigdecimal -v 3.1.6 \
+ && bundle add bigdecimal --version=3.1.6 \
  # cleanup
  && gem cleanup all \
  && rm -rf /root/* /tmp/* $(gem env gemdir)/cache \
@@ -141,10 +141,8 @@ RUN set -eux -o pipefail \
  && rm -rf /var/cache/apk/* \
  && apk add ruby-irb
 
-# set workdir
 WORKDIR ${WORKDIR}
 
-# expose application port
 EXPOSE 3000
 
 HEALTHCHECK --interval=5s CMD doguctl healthy redmine || exit 1
diff --git a/dogu.json b/dogu.json
index e8f3789..ad5daaa 100644
--- a/dogu.json
+++ b/dogu.json
@@ -1,6 +1,6 @@
 {
   "Name": "official/redmine",
-  "Version": "5.0.5-4",
+  "Version": "5.0.8-1",
   "DisplayName": "Redmine",
   "Description": "Redmine is a flexible project management web application",
   "Category": "Development Apps",
diff --git a/resources/startup.sh b/resources/startup.sh
index eb49a22..92123e2 100755
--- a/resources/startup.sh
+++ b/resources/startup.sh
@@ -17,7 +17,6 @@ echo "                       'V/(/////////////////////////////V'      "
 
 SETUP_DONE_KEY="startup/setup_done"
 
-
 # import util functions:
 # - create_secrets_yml
 # - render_config_ru_template
@@ -35,7 +34,7 @@ sourceUtilExitCode=0
 # shellcheck disable=SC1091
 source "${STARTUP_DIR}"/util.sh || sourceUtilExitCode=$?
 if [[ ${sourceUtilExitCode} -ne 0 ]]; then
-  echo "ERROR: An error occurred while sourcing util functions.";
+  echo "ERROR: An error occurred while sourcing util functions."
   doguctl state "ErrorSourceUtilFunctions"
   sleep 300
   exit 2
@@ -46,17 +45,17 @@ function setDoguLogLevel() {
   currentLogLevel=$(doguctl config --default "WARN" "logging/root")
 
   case "${currentLogLevel}" in
-    "ERROR")
-      export REDMINE_LOGLEVEL=":error"
+  "ERROR")
+    export REDMINE_LOGLEVEL=":error"
     ;;
-    "INFO")
-      export REDMINE_LOGLEVEL=":info"
+  "INFO")
+    export REDMINE_LOGLEVEL=":info"
     ;;
-    "DEBUG")
-      export REDMINE_LOGLEVEL=":debug"
+  "DEBUG")
+    export REDMINE_LOGLEVEL=":debug"
     ;;
-    *)
-      export REDMINE_LOGLEVEL=":warn"
+  *)
+    export REDMINE_LOGLEVEL=":warn"
     ;;
   esac
   doguctl template /usr/share/webapps/redmine/config/additional_environment.rb.tpl /usr/share/webapps/redmine/config/additional_environment.rb