diff --git a/app/data/authors.yaml b/app/data/authors.yaml
index 8ca9b70..334d39a 100644
--- a/app/data/authors.yaml
+++ b/app/data/authors.yaml
@@ -41,7 +41,7 @@
   email: heinz@javaspecialists.eu
   photo_url: https://javaspecialists.eu/pics/gb/heinz2-300x300.jpg
   github: kabutz
-  twitter: kabutz
+  twitter: heinzkabutz
   website: https://www.javaspecialists.eu
   description: |
     Heinz is the author of <a href="https://www.javaspecialists.eu">The Java Specialists' Newsletter</a>,