diff --git a/CHANGELOG.md b/CHANGELOG.md
index bb8ca2c6..2cd77717 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,11 @@ Nedenfor ses dato for release og beskrivelse af opgaver som er implementeret.
 
 ## [Under udvikling]
 
+## [5.1.9] 2026-06-15
+
+* [PR-516](https://github.com/itk-dev/selvbetjening.aarhuskommune.dk/pull/516)
+  Enabled os2forms_digital_signature-module.
+
 ## [5.1.8] 2026-05-20
 
 * [PR-510](https://github.com/itk-dev/selvbetjening.aarhuskommune.dk/pull/510)
@@ -813,7 +818,8 @@ og [OS2Forms 3.7.0](https://github.com/OS2Forms/os2forms/releases/tag/3.7.0)
 
 * GO borgersager
 
-[Under udvikling]: https://github.com/itk-dev/os2forms_selvbetjening/compare/5.1.8...HEAD
+[Under udvikling]: https://github.com/itk-dev/os2forms_selvbetjening/compare/5.1.9...HEAD
+[5.1.9]: https://github.com/itk-dev/os2forms_selvbetjening/compare/5.1.8...5.1.9
 [5.1.8]: https://github.com/itk-dev/os2forms_selvbetjening/compare/5.1.7...5.1.8
 [5.1.7]: https://github.com/itk-dev/os2forms_selvbetjening/compare/5.1.6...5.1.7
 [5.1.6]: https://github.com/itk-dev/os2forms_selvbetjening/compare/5.1.5...5.1.6
diff --git a/config/sync/core.extension.yml b/config/sync/core.extension.yml
index 286477ae..41cefe02 100644
--- a/config/sync/core.extension.yml
+++ b/config/sync/core.extension.yml
@@ -85,6 +85,7 @@ module:
   os2forms_custom_view_builders: 0
   os2forms_dawa: 0
   os2forms_digital_post: 0
+  os2forms_digital_signature: 0
   os2forms_email_handler: 0
   os2forms_failed_jobs: 0
   os2forms_fasit: 0
diff --git a/config/sync/ultimate_cron.job.os2forms_digital_signature_cron.yml b/config/sync/ultimate_cron.job.os2forms_digital_signature_cron.yml
new file mode 100644
index 00000000..1cb712ac
--- /dev/null
+++ b/config/sync/ultimate_cron.job.os2forms_digital_signature_cron.yml
@@ -0,0 +1,17 @@
+uuid: 3fd38589-67d6-403e-847f-a491304753b8
+langcode: da
+status: true
+dependencies:
+  module:
+    - os2forms_digital_signature
+title: "Default cron handler"
+id: os2forms_digital_signature_cron
+weight: 0
+module: os2forms_digital_signature
+callback: "os2forms_digital_signature#cron"
+scheduler:
+  id: simple
+launcher:
+  id: serial
+logger:
+  id: database