diff --git a/.pkgr.yml b/.pkgr.yml
index fd9dacf94cb..ac00306c834 100644
--- a/.pkgr.yml
+++ b/.pkgr.yml
@@ -5,7 +5,7 @@ homepage: "https://www.openproject.org"
 maintainer: "operations+packaging@openproject.com"
 license: "GPL"
 targets:
-  debian-10: &debian
+  debian-11: &debian
     build_dependencies:
       - libsqlite3-dev
     dependencies:
@@ -15,8 +15,6 @@ targets:
       - tesseract-ocr
       - catdoc
       - imagemagick
-  debian-11:
-    <<: *debian
   debian-12:
     <<: *debian
   ubuntu-20.04:
diff --git a/docs/installation-and-operations/installation/packaged/README.md b/docs/installation-and-operations/installation/packaged/README.md
index 3992945ea79..caaa80b5d2a 100644
--- a/docs/installation-and-operations/installation/packaged/README.md
+++ b/docs/installation-and-operations/installation/packaged/README.md
@@ -32,7 +32,6 @@ The package is available for the following Linux distributions:
 | [Ubuntu 20.04 Focal](#ubuntu-2004)          |
 | [Debian 12 Bookworm](#debian-12)            |
 | [Debian 11 Bullseye](#debian-11)            |
-| [Debian 10 Buster](#debian-10)              |
 | [CentOS/RHEL 9.x](#centos-9--rhel-9)        |
 | [CentOS/RHEL 8.x](#centos-8--rhel-8)        |
 | [Suse Linux Enterprise Server 15](#sles-15) |
@@ -178,37 +177,6 @@ apt install openproject
 
 Then finish the installation by reading the [*Initial configuration*](#initial-configuration) section.
 
-### Debian 10
-
-Update the `apt` package index and install packages to allow `apt` to use a repository over HTTPS:
-
-```shell
-sudo apt-get update
-sudo apt-get install apt-transport-https ca-certificates wget
-```
-
-Import the PGP key used to sign our packages:
-
-```shell
-wget -qO- https://dl.packager.io/srv/opf/openproject/key | sudo apt-key add -
-```
-
-Add the OpenProject package source:
-
-```shell
-sudo wget -O /etc/apt/sources.list.d/openproject.list \
-  https://dl.packager.io/srv/opf/openproject/stable/14/installer/debian/10.repo
-```
-
-Download the OpenProject package:
-
-```shell
-sudo apt-get update
-sudo apt-get install openproject
-```
-
-Then finish the installation by reading the [*Initial configuration*](#initial-configuration) section.
-
 ## CentOS Installation
 
 ### CentOS 9 / RHEL 9
@@ -352,7 +320,6 @@ You can find more about the BIM edition on [this page](https://www.openproject.o
 > * RHEL/CentOS 8
 > * Ubuntu 22.04
 > * Ubuntu 20.04
-> * Debian 10
 > * Debian 11
 >
 > On older distributions, this wizard step won't be displayed, and the installation will default to the default edition.
diff --git a/docs/installation-and-operations/operation/upgrading/README.md b/docs/installation-and-operations/operation/upgrading/README.md
index 050d7c096b7..1c1f9b6c511 100644
--- a/docs/installation-and-operations/operation/upgrading/README.md
+++ b/docs/installation-and-operations/operation/upgrading/README.md
@@ -78,7 +78,6 @@ The necessary steps are the same as setting up the package source for the first
 | [Ubuntu 20.04 Focal](../../installation/packaged/#ubuntu-2004)           |
 | [Debian 12 Bookworm](../../installation/packaged/#debian-12)             |
 | [Debian 11 Bullseye](../../installation/packaged/#debian-11)             |
-| [Debian 10 Buster](../../installation/packaged/#debian-10)               |
 | [CentOS/RHEL 9.x](../../installation/packaged/#centos-9--rhel-9)         |
 | [CentOS/RHEL 8.x](../../installation/packaged/#centos-8--rhel-8)         |
 | [Suse Linux Enterprise Server 15](../../installation/packaged/#sles-15)  |
diff --git a/docs/installation-and-operations/system-requirements/README.md b/docs/installation-and-operations/system-requirements/README.md
index e6734809b9f..04ab87a56dc 100644
--- a/docs/installation-and-operations/system-requirements/README.md
+++ b/docs/installation-and-operations/system-requirements/README.md
@@ -71,7 +71,6 @@ The [package-based installation](../installation/packaged) requires one of the f
 | Ubuntu 20.04 Focal              |
 | Debian 12 Bookworm              |
 | Debian 11 Bullseye              |
-| Debian 10 Buster                |
 | CentOS/RHEL 9.x                 |
 | CentOS/RHEL 8.x                 |
 | Suse Linux Enterprise Server 15 |