diff --git a/README.md b/README.md
index 9a18e0b9..50a9e9df 100644
--- a/README.md
+++ b/README.md
@@ -43,7 +43,7 @@ openDesk currently features the following functional main components:
 | Portal & IAM         | Nubus                       | AGPL-3.0-or-later                                                                      | [1.14.0](https://docs.software-univention.de/nubus-kubernetes-release-notes/1.x/en/1.14.html) | [Univention's documentation website](https://docs.software-univention.de/n/en/nubus.html)                                             |
 | Project management   | OpenProject                 | GPL-3.0-only                                                                           | [16.4.1](https://www.openproject.org/docs/release-notes/16-4-1/)                              | [For the most recent release](https://www.openproject.org/docs/user-guide/)                                                           |
 | Videoconferencing    | Jitsi                       | Apache-2.0                                                                             | [2.0.10431](https://github.com/jitsi/jitsi-meet/releases/tag/stable%2Fjitsi-meet_10431)       | [For the most recent  release](https://jitsi.github.io/handbook/docs/category/user-guide/)                                            |
-| Weboffice            | Collabora                   | MPL-2.0                                                                                | [25.04.4](https://www.collaboraoffice.com/code-25-04-release-notes/)                          | Online documentation available from within the installed application; [Additional resources](https://sdk.collaboraonline.com/)        |
+| Weboffice            | Collabora                   | MPL-2.0                                                                                | [25.04.5](https://www.collaboraoffice.com/code-25-04-release-notes/)                          | Online documentation available from within the installed application; [Additional resources](https://sdk.collaboraonline.com/)        |
 
 While not all components are perfectly designed for the execution inside containers, one of the project's objectives is to
 align the applications with best practices regarding container design and operations.
diff --git a/helmfile/environments/default-enterprise-overrides/images.yaml.gotmpl b/helmfile/environments/default-enterprise-overrides/images.yaml.gotmpl
index 90da98d4..64a839be 100644
--- a/helmfile/environments/default-enterprise-overrides/images.yaml.gotmpl
+++ b/helmfile/environments/default-enterprise-overrides/images.yaml.gotmpl
@@ -5,7 +5,7 @@ images:
   collabora:
     registry: "registry.opencode.de"
     repository: "zendis/opendesk-enterprise/components/supplier/collabora/images/collabora-online-for-opendesk"
-    tag: "25.04.4.3.1@sha256:b0b5fa9b061df1e8473dff9bb2cf295ab41bd7b35a78b785de518883b07e97c2"
+    tag: "25.04.5.3.1@sha256:d22407cd3bd83dd832f986a697d81c1a4642f55129c76a5a20e637274ce7bf62"
   dovecot:
     registry: "registry.opencode.de"
     repository: "zendis/opendesk-enterprise/components/supplier/open-xchange/images-mirror/dovecot-pro"
diff --git a/helmfile/environments/default/images.yaml.gotmpl b/helmfile/environments/default/images.yaml.gotmpl
index 3d1aeb31..5fe64850 100644
--- a/helmfile/environments/default/images.yaml.gotmpl
+++ b/helmfile/environments/default/images.yaml.gotmpl
@@ -50,7 +50,7 @@ images:
     # upstreamRepository: "bmi/opendesk/components/supplier/collabora/images/collabora-online-for-opendesk"
     registry: "registry.opencode.de"
     repository: "bmi/opendesk/components/supplier/collabora/images/collabora-online-for-opendesk"
-    tag: "25.04.4.3.1@sha256:2ba934fb0dc18965bfaf19151017205b0a85af8b069bc34c994a8eae0b4bee34"
+    tag: "25.04.5.3.1@sha256:0e1ccf43308121c657936510de27244057c3826777a491495a0f7e55a196bc59"
   collaboraController:
     # Enterprise Component
     # providerCategory: "Supplier"