diff --git a/docker/docker-compose.yml b/docker/docker-compose.yml
index 529f877fd..2169fbcd8 100644
--- a/docker/docker-compose.yml
+++ b/docker/docker-compose.yml
@@ -1,4 +1,4 @@
-version: '3.7'
+version: '3.9'
 services:
   ghostfolio:
     image: ghostfolio/ghostfolio:latest