diff --git a/pica-dokuwiki/docker-compose.yml b/pica-dokuwiki/docker-compose.yml
index d725a9b8cb584fdbb241d48a351d3981d484b087..2f238d195552ab75f0380f992eabd94769796776 100644
--- a/pica-dokuwiki/docker-compose.yml
+++ b/pica-dokuwiki/docker-compose.yml
@@ -1,18 +1,20 @@
-  wiki:
-    container_name: wiki
-    image: pica-dokuwiki:2018.05
-    volumes:
-      - /DATA/docker/wiki/html:/var/www/html
-    environment:
-      - MAX_UPLOAD_SIZE=100M
-    security_opt:
-      - no-new-privileges
-    mem_limit: 2048m
-    cpus: "0.20"
-    pids_limit: 1024
-    labels:
-      - "traefik.frontend.rule=Host:wiki.picasoft.net"
-      - "traefik.port=80"
-      - "traefik.enable=true"
-    restart: always
+version : "2.4"
+  services:
+    wiki:
+      container_name: wiki
+      image: pica-dokuwiki:2018.05
+      volumes:
+        - /DATA/docker/wiki/html:/var/www/html
+      environment:
+        - MAX_UPLOAD_SIZE=100M
+      security_opt:
+        - no-new-privileges
+      mem_limit: 2048m
+      cpus: "0.20"
+      pids_limit: 1024
+      labels:
+        - "traefik.frontend.rule=Host:wiki.picasoft.net"
+        - "traefik.port=80"
+        - "traefik.enable=true"
+      restart: always