diff --git a/README.md b/README.md
index af159f1..ece9a70 100644
--- a/README.md
+++ b/README.md
@@ -179,6 +179,9 @@ functions:
           input:
             key-a: "value-a"
             key-b: "value-b"
+
+    # ID of the private network to attach the function to
+    privateNetworkId: "3fd741d4-f686-4afc-bcea-d720c695748f"
 ```
 
 ### Container-specific configuration
@@ -264,6 +267,9 @@ custom:
       # Deprecated: number of simultaneous requests to handle
       # Please use scalingOption of type concurrentRequests instead
       # maxConcurrency: 20
+
+      # ID of the private network to attach the container to
+      privateNetworkId: "3fd741d4-f686-4afc-bcea-d720c695748f"
 ```
 
 ## Supported commands
diff --git a/deploy/lib/createContainers.js b/deploy/lib/createContainers.js
index 0315876..b227229 100644
--- a/deploy/lib/createContainers.js
+++ b/deploy/lib/createContainers.js
@@ -154,6 +154,7 @@ module.exports = {
       sandbox: container.sandbox,
       health_check: adaptHealthCheckToAPI(container.healthCheck),
       scaling_option: adaptScalingOptionToAPI(container.scalingOption),
+      private_network_id: container.privateNetworkId,
     };
 
     // checking if there is custom_domains set on container creation.
@@ -177,6 +178,13 @@ module.exports = {
   },
 
   async updateSingleContainer(container, foundContainer) {
+    let privateNetworkId = container.privateNetworkId;
+    const hasToDeletePrivateNetwork =
+      foundContainer.private_network_id && !container.privateNetworkId;
+    if (hasToDeletePrivateNetwork) {
+      privateNetworkId = "";
+    }
+
     const params = {
       redeploy: false,
       environment_variables: container.env,
@@ -201,6 +209,7 @@ module.exports = {
       sandbox: container.sandbox,
       health_check: adaptHealthCheckToAPI(container.healthCheck),
       scaling_option: adaptScalingOptionToAPI(container.scalingOption),
+      private_network_id: privateNetworkId,
     };
 
     // note about maxConcurrency deprecation
diff --git a/deploy/lib/createFunctions.js b/deploy/lib/createFunctions.js
index a4a4cda..e48b471 100644
--- a/deploy/lib/createFunctions.js
+++ b/deploy/lib/createFunctions.js
@@ -183,6 +183,7 @@ Runtime lifecycle doc : https://www.scaleway.com/en/docs/compute/functions/refer
       domain_name: func.domain_name,
       http_option: func.httpOption,
       sandbox: func.sandbox,
+      private_network_id: func.privateNetworkId,
     };
 
     const availableRuntimes = await this.listRuntimes();
@@ -208,6 +209,13 @@ Runtime lifecycle doc : https://www.scaleway.com/en/docs/compute/functions/refer
   },
 
   async updateSingleFunction(func, foundFunc) {
+    let privateNetworkId = func.privateNetworkId;
+    const hasToDeletePrivateNetwork =
+      foundFunc.private_network_id && !func.privateNetworkId;
+    if (hasToDeletePrivateNetwork) {
+      privateNetworkId = "";
+    }
+
     const params = {
       redeploy: false,
       environment_variables: func.env,
@@ -226,6 +234,7 @@ Runtime lifecycle doc : https://www.scaleway.com/en/docs/compute/functions/refer
       domain_name: func.domain_name,
       http_option: func.httpOption,
       sandbox: func.sandbox,
+      private_network_id: privateNetworkId,
     };
 
     const availableRuntimes = await this.listRuntimes();