diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 90c175b..ba9e56f 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -56,7 +56,7 @@ Things to install:
 - [Node.js](https://nodejs.org) (use the version written under `engines` in [package.json](package.json))
 - [Git](https://git-scm.com/)
 
-Then [use git to clone this repository](https://www.google.com/search?q=how+to+clone+a+repository+with+git).
+Then [use git to clone this repository](https://duckduckgo.com/?q=how+to+clone+a+repository+with+git).
 
 Run `npm install` in a terminal window opened to the cloned repository, all dependencies will be installed. You might be required to install external build tools (especially if under Windows) for the compilation of native node modules, mainly sqlite3.
 
@@ -68,7 +68,7 @@ You should try to the use the node version `npm run electron-version` reports, s
 
 ### Git
 
-This project uses Git as its version control software. If you don't know how to use it, [read a quick guide](https://www.google.com/search?q=how+to+git).
+This project uses Git as its version control software. If you don't know how to use it, [read a quick guide](https://duckduckgo.com/?q=how+to+git).
 
 The general contributing workflow is like this:
 
diff --git a/workspace/gui/requirements.md b/workspace/gui/requirements.md
index b39e6ff..183d97d 100644
--- a/workspace/gui/requirements.md
+++ b/workspace/gui/requirements.md
@@ -1,6 +1,6 @@
 # Requirements for the GUI
 
 - [dark mode](https://material.io/design/color/dark-theme.html) first
-- [mobile first](https://www.google.com/search?q=what+is+mobile+first+design)
+- [mobile first](https://duckduckgo.com/?q=what+is+mobile+first+design)
 - look at the established [feature requirements](../features) for must-haves
 - also [user stories](../user-stories.md) for possible features
diff --git a/workspace/user-stories.md b/workspace/user-stories.md
index e757c65..5f8c5e8 100644
--- a/workspace/user-stories.md
+++ b/workspace/user-stories.md
@@ -2,7 +2,7 @@
 
 As a **_\<type of user>_**, I want **_\<some goal>_** so that **_\<some reason>_**.
 
-[What is a user story?](https://www.google.com/search?q=what+is+a+user+story) These can be as specific or broad as you want. You don't have to use the template above. You don't have to be that type of user. Write them here, open an issue, or write an email. You can also discuss the existing user stories via the same channels.
+[What is a user story?](https://duckduckgo.com/?q=what+is+a+user+story) These can be as specific or broad as you want. You don't have to use the template above. You don't have to be that type of user. Write them here, open an issue, or write an email. You can also discuss the existing user stories via the same channels.
 
 ## 1