diff --git a/homepage/theme/templates/base.html b/homepage/theme/templates/base.html
index 638be61..de50adc 100644
--- a/homepage/theme/templates/base.html
+++ b/homepage/theme/templates/base.html
@@ -49,10 +49,10 @@
               <a href="/about/">About</a>
             </li>
             <li>
-              <a href="{{GITHUB_ORG}}" target="_blank">GitHub</a>
+              <a href="{{GITHUB_ORG}}" rel="noopener" target="_blank">GitHub</a>
             </li>
             <li>
-              <a href="{{PATREON_URL}}" target="_blank">Patreon</a>
+              <a href="{{PATREON_URL}}" rel="noopener" target="_blank">Patreon</a>
             </li>
           </ul>
         </nav>
@@ -81,7 +81,7 @@
                 Development of <strong>offen</strong> has just started. Do not hesitate to make a contribution and help us handle data with respect.
               </p>
               <div class="btn-wrapper">
-                <a class="btn btn-color-black" href="{{GITHUB_ORG}}" target="_blank">Get involved</a>
+                <a class="btn btn-color-black" href="{{GITHUB_ORG}}" rel="noopener" target="_blank">Get involved</a>
               </div>
             </div>
             <div class="card">
@@ -103,7 +103,7 @@
                 We're working hard to ensure that <strong>offen</strong> is independent, cutting-edge and can be sustained for years to come.
               </p>
               <div class="btn-wrapper">
-                <a class="btn btn-color-black" href="{{PATREON_URL}}" target="_blank">Support us</a>
+                <a class="btn btn-color-black" href="{{PATREON_URL}}" rel="noopener" target="_blank">Support us</a>
               </div>
             </div>
           </div>
@@ -124,10 +124,10 @@
           <a href="mailto:{{CONTACT_EMAIL}}">Contact</a>
         </p>
         <p>
-          <a href="{{GITHUB_ORG}}" target="_blank">GitHub</a>
+          <a href="{{GITHUB_ORG}}" rel="noopener" target="_blank">GitHub</a>
         </p>
         <p>
-          <a href="{{PATREON_URL}}" target="_blank">Patreon</a>
+          <a href="{{PATREON_URL}}" rel="noopener" target="_blank">Patreon</a>
         </p>
       </div>
       <div class="footer-card">
diff --git a/homepage/theme/templates/index.html b/homepage/theme/templates/index.html
index c7acbb8..951f2c7 100644
--- a/homepage/theme/templates/index.html
+++ b/homepage/theme/templates/index.html
@@ -15,7 +15,7 @@
             <strong>offen</strong> is a free and open source analytics software for websites and web applications that allows respectful handling of data.
           </p>
           <div class="btn-wrapper">
-            <a class="btn btn-color-black" href="{{GITHUB_ORG}}" target="_blank">Get involved</a>
+            <a class="btn btn-color-black" href="{{GITHUB_ORG}}" rel="noopener" target="_blank">Get involved</a>
           </div>
         </div>
       </div>
@@ -92,7 +92,7 @@
             We're working hard to ensure that <strong>offen</strong> is independent, cutting-edge and can be sustained for years to come.
           </p>
           <div class="btn-wrapper">
-            <a class="btn btn-color-black" href="{{PATREON_URL}}" target="_blank">Support us</a>
+            <a class="btn btn-color-black" href="{{PATREON_URL}}" rel="noopener" target="_blank">Support us</a>
           </div>
         </div>
       </div>