diff --git a/.github/renovate.json b/.github/renovate.json
index fb75c565..07a2f18d 100644
--- a/.github/renovate.json
+++ b/.github/renovate.json
@@ -5,14 +5,25 @@
   "enabledManagers": ["regex"],
   "regexManagers":[
     {
+      "description": "Regex used to match versions without prefix 'v'. Example: capi, capo.",
       "fileMatch":[
-        "^terraform\\/variables.tf","^doc\\/configuration.md"
+        "^terraform\\/variables.tf","^doc\\/configuration.md","^terraform\\/environments\\/environment-default.tfvars"
       ],
       "matchStrings":[
-        "default\\s*= \"(?<currentValue>.*?)\"\\s*# renovate: datasource=(?<datasource>.*?) depName=(?<depName>.*?)\n",
-        ".\\|\\s*`(?<currentValue>.*?)`\\s*<!-- renovate: datasource=(?<datasource>.*?) depName=(?<depName>.*?) -->"
+	"`(?<currentValue>(\\d+\\.){1,2}(x|\\d+))`\\s*<!-- renovate: datasource=(?<datasource>.*?) depName=(?<depName>.*?) -->",
+        "default\\s*= \"(?<currentValue>(\\d+\\.){1,2}(x|\\d+))\"\\s*# renovate: datasource=(?<datasource>.*?) depName=(?<depName>.*?)\n"
      ],
      "extractVersionTemplate": "^v(?<version>.*)$"
+    },
+    {
+      "description": "Regex used to match versions with prefix 'v'. Example: calico.",
+      "fileMatch":[
+        "^terraform\\/variables.tf","^doc\\/configuration.md","^terraform\\/environments\\/environment-default.tfvars"
+      ],
+      "matchStrings":[
+	"`(?<currentValue>v(\\d+\\.){1,2}(x|\\d+))`\\s*<!-- renovate: datasource=(?<datasource>.*?) depName=(?<depName>.*?) -->",
+        "default\\s*= \"(?<currentValue>v(\\d+\\.){1,2}(x|\\d+))\"\\s*# renovate: datasource=(?<datasource>.*?) depName=(?<depName>.*?)\n"
+     ]
     }
   ]
 }
diff --git a/doc/configuration.md b/doc/configuration.md
index badcfd37..baed8b4f 100644
--- a/doc/configuration.md
+++ b/doc/configuration.md
@@ -47,7 +47,7 @@ Parameters controlling the cluster creation:
 | `pod_cidr`                       | `POD_CIDR`                                      | SCS        | `192.168.0.0/16`                                         | IPv4 address range (CIDR notation) for pods                                                                                                                                                                |
 | `service_cidr`                   | `SERVICE_CIDR`                                  | SCS        | `10.96.0.0/12`                                           | IPv4 address range (CIDR notation) for services                                                                                                                                                            |
 | `use_cilium`                     | `USE_CILIUM`                                    | SCS        | `true`                                                   | Use cilium as CNI instead of calico, it can be set to vX.Y.Z and `true` results in `v1.14.1`, also see `cilium_binaries`                                                                                   |
-| `calico_version`                 | `CALICO_VERSION`                                | SCS        | `v3.26.1`                                                | Version of the Calico CNI provider (ignored if `use_cilium` is set)                                                                                                                                        |
+| `calico_version`                 | `CALICO_VERSION`                                | SCS        | `v3.26.1` <!-- renovate: datasource=github-releases depName=projectcalico/calico -->                                                | Version of the Calico CNI provider (ignored if `use_cilium` is set)                                                                                                                                        |
 | `kubernetes_version`             | `KUBERNETES_VERSION`                            | capo       | `v1.27.x`                                                | Kubernetes version deployed into workload cluster (`.x` means latest patch release)                                                                                                                        |
 | ``                               | `OPENSTACK_IMAGE_NAME`                          | capo       | `ubuntu-capi-image-${KUBERNETES_VERION}`                 | Image name for k8s controller and worker nodes. Ubuntu 22.04 image is used for k8s versions >= 1.27.3, 1.26.6, 1.25.11, Ubuntu 20.04 otherwise.                                                            |
 | `kube_image_raw`                 | `OPENSTACK_IMAGE_RAW`                           | SCS        | `true`                                                   | Register images in raw format (instead of qcow2), good for ceph COW                                                                                                                                        |
diff --git a/terraform/variables.tf b/terraform/variables.tf
index dcbe5abb..8653b4f9 100644
--- a/terraform/variables.tf
+++ b/terraform/variables.tf
@@ -61,7 +61,7 @@ variable "ssh_username" {
 variable "calico_version" {
   description = "desired version of calico"
   type        = string
-  default     = "v3.26.1"
+  default     = "v3.26.1" # renovate: datasource=github-releases depName=projectcalico/calico
 }
 
 variable "clusterapi_version" {