diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 4fb25de..d0771c5 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -28,7 +28,7 @@ jobs:
         echo "::set-output name=changelog::$(git log -1 --pretty=format:"%s")"
 
     - name: Bump version and push tag
-      uses: anothrNick/github-tag-action@1.17.2
+      uses: anothrNick/github-tag-action@1.22.0
       id: tag
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/README.md b/README.md
index cd74b04..2582e33 100644
--- a/README.md
+++ b/README.md
@@ -109,7 +109,7 @@ module jenkins {
 | repository | Helm repository | `string` | n/a | yes |
 | set | Value block with custom STRING values to be merged with the values yaml. | <pre>list(object({<br>    name  = string<br>    value = string<br>  }))</pre> | `null` | no |
 | set\_sensitive | Value block with custom sensitive values to be merged with the values yaml that won't be exposed in the plan's diff. | <pre>list(object({<br>    path  = string<br>    value = string<br>  }))</pre> | `null` | no |
-| values | Extra values | `list(string)` | n/a | yes |
+| values | Extra values | `list(string)` | `[]` | no |
 
 ## Outputs
 
diff --git a/variables.tf b/variables.tf
index 434397a..0db74db 100644
--- a/variables.tf
+++ b/variables.tf
@@ -11,6 +11,7 @@ variable "app" {
 variable "values" {
   description = "Extra values"
   type        = list(string)
+  default     = []
 }
 
 variable "set" {