Correct url

Signed-off-by: Mauro Morales <mauro.morales@spectrocloud.com>

content/en/blog/hacktoberfest-2023.md

@@ -72,7 +72,7 @@ a short presentation about open-source and how to contribute to your favorite pr
 hours to hack together and help you get started with your first contribution whether on Kairos or any other project of
 your preference. We will also have some food and drinks to keep us going.
 
-The event will take place in the [Ring Twice](https://ringtwice/) office in Brussels, Belgium. The address is
+The event will take place in the [Ring Twice](https://ringtwice.be/) office in Brussels, Belgium. The address is
 Cantersteen 10, 1000 Bruxelles. We will start at 18:00 and will end at 22:00.
 
 If you want to attend or have any questions, please email mauro@kairos.io. Keep in mind that we only have limited seats