diff --git a/database_updates.php b/database_updates.php
index 2467dab9..220a700b 100644
--- a/database_updates.php
+++ b/database_updates.php
@@ -2284,10 +2284,18 @@ if (LATEST_DATABASE_VERSION > CURRENT_DATABASE_VERSION) {
         mysqli_query($mysqli, "UPDATE `settings` SET `config_current_database_version` = '1.5.8'");
     }
 
-    // if (CURRENT_DATABASE_VERSION == '1.5.8') {
-    //     // Insert queries here required to update to DB version 1.5.9
+    if (CURRENT_DATABASE_VERSION == '1.5.8') {
+        // Add task completetion estimate time to tasks and task templates
+        mysqli_query($mysqli, "ALTER TABLE `tasks` ADD `task_completion_estimate` INT(11) NOT NULL DEFAULT 0 AFTER `task_order`");
+        mysqli_query($mysqli, "ALTER TABLE `task_templates` ADD `task_template_completion_estimate` INT(11) NOT NULL DEFAULT 0 AFTER `task_template_order`");
+
+        mysqli_query($mysqli, "UPDATE `settings` SET `config_current_database_version` = '1.5.9'");
+    }
+
+    // if (CURRENT_DATABASE_VERSION == '1.5.9') {
+    //     // Insert queries here required to update to DB version 1.6.0
     //     // Then, update the database to the next sequential version
-    //     mysqli_query($mysqli, "UPDATE `settings` SET `config_current_database_version` = '1.5.9'");
+    //     mysqli_query($mysqli, "UPDATE `settings` SET `config_current_database_version` = '1.6.0'");
     // }
 
 } else {
diff --git a/database_version.php b/database_version.php
index d467c5d5..74eeedf0 100644
--- a/database_version.php
+++ b/database_version.php
@@ -5,4 +5,4 @@
  * It is used in conjunction with database_updates.php
  */
 
-DEFINE("LATEST_DATABASE_VERSION", "1.5.8");
+DEFINE("LATEST_DATABASE_VERSION", "1.5.9");
diff --git a/db.sql b/db.sql
index 2c8ebd0c..06e2c652 100644
--- a/db.sql
+++ b/db.sql
@@ -1691,6 +1691,7 @@ CREATE TABLE `task_templates` (
   `task_template_id` int(11) NOT NULL AUTO_INCREMENT,
   `task_template_name` varchar(200) NOT NULL,
   `task_template_order` int(11) NOT NULL DEFAULT 0,
+  `task_template_completion_estimate` int(11) NOT NULL DEFAULT 0,
   `task_template_created_at` datetime NOT NULL DEFAULT current_timestamp(),
   `task_template_updated_at` datetime DEFAULT NULL ON UPDATE current_timestamp(),
   `task_template_archived_at` datetime DEFAULT NULL,
@@ -1711,6 +1712,7 @@ CREATE TABLE `tasks` (
   `task_name` varchar(255) NOT NULL,
   `task_status` varchar(255) DEFAULT NULL,
   `task_order` int(11) NOT NULL DEFAULT 0,
+  `task_completion_estimate` int(11) NOT NULL DEFAULT 0,
   `task_completed_at` datetime DEFAULT NULL,
   `task_completed_by` int(11) DEFAULT NULL,
   `task_created_at` datetime NOT NULL DEFAULT current_timestamp(),
@@ -2112,4 +2114,4 @@ CREATE TABLE `vendors` (
 /*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;
 /*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;
 
--- Dump completed on 2024-10-22 23:52:12
+-- Dump completed on 2024-10-23 13:27:47