diff --git a/compose_viz/compose.py b/compose_viz/compose.py
index 6c65a8a..4cafca1 100644
--- a/compose_viz/compose.py
+++ b/compose_viz/compose.py
@@ -4,7 +4,11 @@ from compose_viz.service import Service
 
 class Compose:
     def __init__(self, services: List[Service]) -> None:
-        self.services = services
+        self._services = services
 
     def extract_networks(self) -> List[str]:
         raise NotImplementedError
+
+    @property
+    def services(self):
+        return self._services
diff --git a/compose_viz/service.py b/compose_viz/service.py
index 6e42483..5b809e3 100644
--- a/compose_viz/service.py
+++ b/compose_viz/service.py
@@ -3,11 +3,43 @@ from typing import List
 
 class Service:
     def __init__(self, name: str, image: str, ports: List[str] = [], networks: List[str] = [], volumes: List[str] = [], depends_on: List[str] = [], links: List[str] = [], extends: List[str] = []) -> None:
-        self.name = name
-        self.image = image
-        self.ports = ports
-        self.networks = networks
-        self.volumes = volumes
-        self.depends_on = depends_on
-        self.links = links
-        self.extends = extends
+        self._name = name
+        self._image = image
+        self._ports = ports
+        self._networks = networks
+        self._volumes = volumes
+        self._depends_on = depends_on
+        self._links = links
+        self._extends = extends
+
+    @property
+    def name(self):
+        return self._name
+    
+    @property
+    def image(self):
+        return self._image
+
+    @property
+    def ports(self):
+        return self._ports
+
+    @property
+    def networks(self):
+        return self._networks
+
+    @property
+    def volumes(self):
+        return self._volumes
+
+    @property
+    def depends_on(self):
+        return self._depends_on
+
+    @property
+    def links(self):
+        return self._links
+
+    @property
+    def extends(self):
+        return self._extends