diff --git a/caddy/docker-compose.yaml b/caddy/docker-compose.yaml
index 9244015..d658231 100644
--- a/caddy/docker-compose.yaml
+++ b/caddy/docker-compose.yaml
@@ -1,4 +1,4 @@
-version: "3.9"
+version: "3"
 
 services:
   portainer:
diff --git a/gitea/docker-compose.yaml b/gitea/docker-compose.yaml
index 4f3269b..fb100df 100644
--- a/gitea/docker-compose.yaml
+++ b/gitea/docker-compose.yaml
@@ -1,4 +1,4 @@
-version: "3.9"
+version: "3"
 
 services:
   gitea:
diff --git a/postgresql/docker-compose.yaml b/postgresql/docker-compose.yaml
index 6790645..2318347 100644
--- a/postgresql/docker-compose.yaml
+++ b/postgresql/docker-compose.yaml
@@ -1,4 +1,4 @@
-version: "3.9"
+version: "3"
 
 services:
   postgresql: