diff --git a/README.md b/README.md
index cbb1272..049037a 100644
--- a/README.md
+++ b/README.md
@@ -78,11 +78,12 @@ CREATE TABLE IF NOT EXISTS Smartlock
         `doorState` SMALLINT NOT NULL,
         `doubleButtonPressAction` SMALLINT NOT NULL,
         `favorite` BOOLEAN NOT NULL,
-        `firmwareVersion` VARCHAR(255),
+        `firmwareVersion` INT NOT NULL,
         `fobAction1` SMALLINT NOT NULL,
         `fobAction2` SMALLINT NOT NULL,
         `fobAction3` SMALLINT NOT NULL,
         `fobPaired` BOOLEAN NOT NULL,
+        `hardwareVersion` INT NOT NULL,
         `homekitState` SMALLINT NOT NULL,
         `keypadPaired` BOOLEAN NOT NULL,
         `lastAction` SMALLINT NOT NULL,
diff --git a/Upgrade.md b/Upgrade.md
index 2d83470..19f5c5f 100644
--- a/Upgrade.md
+++ b/Upgrade.md
@@ -1,3 +1,12 @@
+## 11.12.2018
+Added hardwareVersion Information
+
+##### SQL Update 
+```
+TRUNCATE TABLE Smartlock; /*needs to be truncated - otherwise column mod is not possible*/
+ALTER TABLE Smartlock MODIFY `firmwareVersion` INT NOT NULL;
+ALTER TABLE Smartlock ADD COLUMN `hardwareVersion` INT NOT NULL AFTER `fobPaired`;
+```
 
 ## 30.11.2018 
 * Nuki Smartlock Firmware 67330 -> 67331 (checked @ 30.11.2018)