diff --git a/class/defaults.yml b/class/defaults.yml
index 3b7dbef..d1eadae 100644
--- a/class/defaults.yml
+++ b/class/defaults.yml
@@ -1,7 +1,7 @@
 parameters:
   openshift4_terraform:
     =_tf_module_version:
-      cloudscale: v4.5.0
+      cloudscale: v4.5.1
       exoscale: v5.2.0
     images:
       terraform:
diff --git a/tests/golden/cloudscale/openshift4-terraform/openshift4-terraform/main.tf.json b/tests/golden/cloudscale/openshift4-terraform/openshift4-terraform/main.tf.json
index 36c9694..d19a2f8 100644
--- a/tests/golden/cloudscale/openshift4-terraform/openshift4-terraform/main.tf.json
+++ b/tests/golden/cloudscale/openshift4-terraform/openshift4-terraform/main.tf.json
@@ -9,7 +9,7 @@
       "ignition_ca": "SomeCertificateString",
       "lb_cloudscale_api_secret": "${var.lb_cloudscale_api_secret}",
       "region": "rma",
-      "source": "git::https://github.com/appuio/terraform-openshift4-cloudscale.git//?ref=v4.5.0",
+      "source": "git::https://github.com/appuio/terraform-openshift4-cloudscale.git//?ref=v4.5.1",
       "ssh_keys": [
         "ssh-ed25519 AA..."
       ]