diff --git a/CHANGELOG.md b/CHANGELOG.md
index 649b962..da860b4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,17 @@ The [public API](https://semver.org/spec/v2.0.0.html#spec-item-1) of this projec
 
 ---
 
+## [v2.5.0](https://github.com/ddev/github-action-add-on-test/releases/tag/v2.5.0) - 2026-09-01
+
+[_Compare with previous release_](https://github.com/ddev/github-action-add-on-test/compare/v2.4.5...v2.5.0)
+
+### Changed
+
+- Replace `mxschmitt/action-tmate` with `owenthereal/action-upterm`, the tmate servers have been shut down ([PR #67](https://github.com/ddev/github-action-add-on-test/pull/67))
+- Reword the `debug_enabled` description to `Enable remote debugging session` so it no longer names the debugging tool ([PR #67](https://github.com/ddev/github-action-add-on-test/pull/67))
+
+---
+
 ## [v2.4.5](https://github.com/ddev/github-action-add-on-test/releases/tag/v2.4.5) - 2026-06-15
 
 [_Compare with previous release_](https://github.com/ddev/github-action-add-on-test/compare/v2.4.4...v2.4.5)
diff --git a/README.md b/README.md
index 766bf8c..e966ff0 100644
--- a/README.md
+++ b/README.md
@@ -109,7 +109,7 @@ Default: `./`
 
 - `debug_enabled` (_Boolean_)
 
-If `true`, a tmate session will be accessible before the tests step. See [action-tmate](https://github.com/mxschmitt/action-tmate) for more details.
+If `true`, the runner becomes reachable over SSH, SFTP and SCP before the tests step. See [action-upterm](https://github.com/owenthereal/action-upterm) for more details.
 
 Not required.
 
@@ -166,7 +166,7 @@ on:
     inputs:
       debug_enabled:
         type: boolean
-        description: Debug with tmate
+        description: Enable remote debugging session
         default: false
 
 permissions:
diff --git a/action.yaml b/action.yaml
index cbd8749..24d1f03 100644
--- a/action.yaml
+++ b/action.yaml
@@ -27,7 +27,7 @@ inputs:
 
   debug_enabled:
     type: boolean
-    description: "Debug with tmate"
+    description: "Enable remote debugging session"
     required: false
     default: false
 
@@ -85,10 +85,10 @@ runs:
       shell: bash
       run: ddev debug download-images >/dev/null
 
-    - uses: mxschmitt/action-tmate@35b54afac29c97fb54faba5b513f8fbd1882f113 # https://github.com/mxschmitt/action-tmate/commits/v3.24/
+    - name: Setup upterm session
+      uses: owenthereal/action-upterm@47652056242288ccbebd30f836e9885d09a75365 # https://github.com/owenthereal/action-upterm/commits/v1.15.0/
       with:
         limit-access-to-actor: true
-        github-token: ${{ inputs.token }}
       if: inputs.debug_enabled == 'true'
 
     - name: Run test