diff --git a/app/generate-migrations.php b/app/generate-migrations.php
index 861e9d1..bf4f91e 100644
--- a/app/generate-migrations.php
+++ b/app/generate-migrations.php
@@ -176,7 +176,10 @@ class ColumnParser
         foreach ($validOptions as $validOption => $callable) {
             if (str_contains(strtolower($this->line), $validOption)) {
                 list($option, $value) = $callable($parts);
-                if (!is_bool($value) and !ctype_digit($value)) {
+                if (strtolower($value) === 'null') {
+                    $value = 'null';
+                }
+                if ($value !== 'null' and !is_bool($value) and !ctype_digit($value)) {
                     $value = trim($value, "'");
                     $value = "'{$value}'";
                 }
@@ -490,7 +493,10 @@ use Phinx\Seed\AbstractSeed;
                 if (is_bool($value)) {
                     $value = $value ? 1 : 0;
                 }
-                if (!ctype_digit("{$value}")) {
+                if (!ctype_digit("{$value}") and $value !== null) {
+                    if (str_contains($value, "'")) {
+                        $value = str_replace("'", "\'", $value);
+                    }
                     $value = "'{$value}'";
                 }
                 $output []= "\t\t\t\t'{$key}' => {$value},";