diff --git a/02_deployHono/main.tf b/02_deployHono/main.tf
index 8a64a23..dd6b260 100644
--- a/02_deployHono/main.tf
+++ b/02_deployHono/main.tf
@@ -48,7 +48,7 @@ module "persistent_storage" {
 }
 
 module "kafka" {
-  depends_on = [module.persistent_storage]
+  depends_on = [module.persistent_storage, module.mongodb]
   source     = "./modules/kafka"
 }
 
@@ -86,6 +86,9 @@ module "jaeger" {
   depends_on = [module.k8s]
   source     = "./modules/jaeger"
 }
+module "cert_manager" {
+  source     = "./modules/cert_manager"
+}
 
 ###########################################
 ###########################################
diff --git a/02_deployHono/modules/cert_manager/main.tf b/02_deployHono/modules/cert_manager/main.tf
new file mode 100644
index 0000000..1c3e73e
--- /dev/null
+++ b/02_deployHono/modules/cert_manager/main.tf
@@ -0,0 +1,13 @@
+# https://github.com/jetstack/cert-manager/tree/614438aed00e1060870b273f2238794ef69b60ab/deploy/charts/cert-manager
+resource "helm_release" "cert-manager" {
+  name = "cert-manager"
+
+  repository = "https://charts.jetstack.io"
+  chart      = "cert-manager"
+  version    = "~> 1.3.1"
+
+  set {
+    name  = "installCRDs"
+    value = "true"
+  }
+}
\ No newline at end of file
diff --git a/02_deployHono/modules/hono/main.tf b/02_deployHono/modules/hono/main.tf
index 1fe1332..20b4cbe 100644
--- a/02_deployHono/modules/hono/main.tf
+++ b/02_deployHono/modules/hono/main.tf
@@ -32,7 +32,7 @@ resource "helm_release" "hono" {
   chart           = "hono"
   version         = "1.9.8"
   cleanup_on_fail = "true"
-  #depends_on      = [helm_release.mongodb]
+  depends_on      = [helm_release.mongodb]
   values = [
     file("${path.module}/values.yaml")
   ]
@@ -48,18 +48,4 @@ resource "helm_release" "hono" {
     name  = "deviceRegistryExample.mongoDBBasedDeviceRegistry.mongodb.password"
     value = var.mongodb_password
   }
-}
-# https://github.com/jetstack/cert-manager/tree/614438aed00e1060870b273f2238794ef69b60ab/deploy/charts/cert-manager
-resource "helm_release" "cert-manager" {
-  name = "cert-manager"
-
-  repository = "https://charts.jetstack.io"
-  chart      = "cert-manager"
-  version    = "~> 1.3.1"
-
-  set {
-    name  = "installCRDs"
-    value = "true"
-  }
-}
-
+}
\ No newline at end of file