diff --git a/README.md b/README.md
index b04b64c..07d0b49 100644
--- a/README.md
+++ b/README.md
@@ -39,7 +39,7 @@ No modules.
 | <a name="input_lc_ctype"></a> [lc\_ctype](#input\_lc\_ctype) | Character classification `LC_CTYPE` to use in the database | `string` | `"C"` | no |
 | <a name="input_make_owner"></a> [make\_owner](#input\_make\_owner) | Set role as an owner of database | `bool` | `false` | no |
 | <a name="input_name"></a> [name](#input\_name) | The name of the database | `string` | n/a | yes |
-| <a name="input_password"></a> [password](#input\_password) | Owner role's password parameters | <pre>object({<br>    length      = optional(number, 20)<br>    special     = optional(bool, false)<br>    min_numeric = optional(number, 2)<br>  })</pre> | `{}` | no |
+| <a name="input_password"></a> [password](#input\_password) | Owner role's password parameters | <pre>object({<br>    length      = optional(number, 20)<br>    special     = optional(bool, false)<br>    min_numeric = optional(number, 2)<br>    min_lower   = optional(number, 2)<br>  })</pre> | `{}` | no |
 | <a name="input_privileges"></a> [privileges](#input\_privileges) | The list of privileges to grant role for the database | `list(string)` | <pre>[<br>  "CONNECT",<br>  "CREATE",<br>  "TEMPORARY"<br>]</pre> | no |
 | <a name="input_role"></a> [role](#input\_role) | The name of the role, default - name of database | `string` | `null` | no |
 
diff --git a/main.tf b/main.tf
index 0193850..37d2d12 100644
--- a/main.tf
+++ b/main.tf
@@ -12,6 +12,7 @@ resource "random_password" "password" {
   length      = var.password.length
   special     = var.password.special
   min_numeric = var.password.min_numeric
+  min_lower   = var.password.min_lower
 }
 
 resource "postgresql_role" "role" {
diff --git a/variables.tf b/variables.tf
index 0a8cc01..e5adabe 100644
--- a/variables.tf
+++ b/variables.tf
@@ -56,6 +56,7 @@ variable "password" {
     length      = optional(number, 20)
     special     = optional(bool, false)
     min_numeric = optional(number, 2)
+    min_lower   = optional(number, 2)
   })
   default = {}
 }