diff --git a/src/data.rs b/src/data.rs
index 17a97b9..5f47280 100644
--- a/src/data.rs
+++ b/src/data.rs
@@ -57,6 +57,23 @@ impl HostResources {
 
         self.save_to_disk()
     }
+
+    pub fn un_reserve_resources(&mut self, app: &App) -> Result<()> {
+        self.reserved_memory_mb -= app.app_resource.memory_mb;
+        self.reserved_vcpus -= app.app_resource.vcpu;
+        self.reserved_disk_mb -= app.app_resource.disk_mb;
+
+        for (port, _) in app.mapped_ports.iter() {
+            self.reserved_host_ports.remove(port);
+        }
+        let removed_existing_app = self.existing_apps.take(&app.uuid).ok_or_else(|| {
+            log::error!("App \"{}\" not found", app.uuid);
+            anyhow!("App \"{}\" not found", app.uuid)
+        })?;
+        dbg!(removed_existing_app, &self.existing_apps);
+
+        self.save_to_disk()
+    }
 }
 
 #[derive(Debug, Default, Clone, Serialize, Deserialize)]
@@ -142,16 +159,9 @@ impl App {
     }
 
     pub async fn delete_app(&self, host_resource: &mut HostResources) -> Result<()> {
-        let _ = host_resource
-            .existing_apps
-            .take(&self.uuid)
-            .ok_or_else(|| {
-                log::error!("App \"{}\" not found", self.uuid);
-                anyhow!("App \"{}\" not found", self.uuid)
-            })?;
-
         let container_name = format!("{APP_NAME_PREFIX}-{}", &self.uuid);
         delete_enclave(container_name)?;
+        host_resource.un_reserve_resources(self)?;
 
         Ok(())
     }