diff --git a/docs/installation-and-operations/installation/manual/README.md b/docs/installation-and-operations/installation/manual/README.md
index 55b6e1d786b..4ea09235410 100644
--- a/docs/installation-and-operations/installation/manual/README.md
+++ b/docs/installation-and-operations/installation/manual/README.md
@@ -410,7 +410,7 @@ Restart the OpenProject server afterwards:
 
 The next web-request to the server will take longer (as the application is restarted). All subsequent request should be as fast as always.
 
-We encourage you to extend OpenProject yourself by writing a plug-in. Please, read the [plugin creation guide](https://www.openproject.org/docs/development/create-openproject-plugin/) for more information.
+We encourage you to extend OpenProject yourself by writing a plug-in. Please, read the [plugin creation guide](../../../development/create-openproject-plugin/) for more information.
 
 ## Troubleshooting
 
diff --git a/frontend/src/locales/README.md b/frontend/src/locales/README.md
index b3305a96eb2..2817d7ba5b9 100644
--- a/frontend/src/locales/README.md
+++ b/frontend/src/locales/README.md
@@ -1,4 +1,4 @@
 This folder will contain generated translations in your development or production OpenProject environment.
 
 To find out more how to contribute to translations,
-please see [our translation guide](https://docs.openproject.org/development/#translations).
+please see [our translation guide](https://www.openproject.org/docs/development/#translations).