diff --git a/Dockerfile b/Dockerfile
index 7a785619dbbb6b49500b1435240b31243d153fd8..76d17cff23ee189270e14066a4f5426ef794302b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM heroku/heroku:16-build
+FROM troels/heroku:18-build
 
 WORKDIR /app
 ENV WORKSPACE_DIR="/app/builds" \