diff --git a/docker-compose.yml b/docker-compose.yml
index 2018b3c..73bda1d 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -4,7 +4,7 @@ services:
     build:
       context: .
       args:
-        - UPSTREAM_VERSION_PORTAINER=2.45.3
+        UPSTREAM_VERSION_PORTAINER: "2.45.3"
     image: portainer.dnp.dappnode.eth:0.1.0
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock