diff --git a/modules/provider/README.md b/modules/provider/README.md
index a4374f8..446bf3f 100644
--- a/modules/provider/README.md
+++ b/modules/provider/README.md
@@ -30,7 +30,7 @@ No modules.
 
 | Name | Description | Type | Default | Required |
 |------|-------------|------|---------|:--------:|
-| <a name="input_thumbprint_list"></a> [thumbprint\_list](#input\_thumbprint\_list) | (Optional) A list of server certificate thumbprints for the OpenID Connect (OIDC) identity provider's server certificate(s). | `list(string)` | <pre>[<br>  "6938fd4d98bab03faadb97b34396831e3780aea1"<br>]</pre> | no |
+| <a name="input_thumbprint_list"></a> [thumbprint\_list](#input\_thumbprint\_list) | (Optional) A list of server certificate thumbprints for the OpenID Connect (OIDC) identity provider's server certificate(s). | `list(string)` | <pre>[<br>  "6938fd4d98bab03faadb97b34396831e3780aea1",<br>  "1c58a3a8518e8759bf075b76b750d4f2df264fcd"<br>]</pre> | no |
 
 ## Outputs
 
diff --git a/modules/provider/variables.tf b/modules/provider/variables.tf
index 958f035..d9e878c 100644
--- a/modules/provider/variables.tf
+++ b/modules/provider/variables.tf
@@ -5,5 +5,8 @@
 variable "thumbprint_list" {
   description = "(Optional) A list of server certificate thumbprints for the OpenID Connect (OIDC) identity provider's server certificate(s)."
   type        = list(string)
-  default     = ["6938fd4d98bab03faadb97b34396831e3780aea1"]
+  default = [
+    "6938fd4d98bab03faadb97b34396831e3780aea1",
+    "1c58a3a8518e8759bf075b76b750d4f2df264fcd"
+  ]
 }