diff --git a/composer.json b/composer.json
index 13d1072..dc2a08f 100644
--- a/composer.json
+++ b/composer.json
@@ -33,7 +33,7 @@
     },
     "autoload": {
         "psr-4": {
-            "SilverStripe\\SpamProtection\\": "code/",
+            "SilverStripe\\SpamProtection\\": "src/",
             "SilverStripe\\SpamProtection\\Tests\\": "tests/"
         }
     },
diff --git a/phpcs.xml.dist b/phpcs.xml.dist
index d76bc90..f3047d8 100644
--- a/phpcs.xml.dist
+++ b/phpcs.xml.dist
@@ -2,7 +2,7 @@
 <ruleset name="SilverStripe">
     <description>CodeSniffer ruleset for SilverStripe coding conventions.</description>
 
-    <file>code</file>
+    <file>src</file>
     <file>tests</file>
 
     <rule ref="PSR2" >
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 794aa0f..57c7cdd 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -8,7 +8,7 @@
 
 	<filter>
 		<whitelist addUncoveredFilesFromWhitelist="true">
-			<directory suffix=".php">code/</directory>
+			<directory suffix=".php">src/</directory>
 			<exclude>
 				<directory suffix=".php">tests/</directory>
 			</exclude>
diff --git a/code/EditableSpamProtectionField.php b/src/EditableSpamProtectionField.php
similarity index 97%
rename from code/EditableSpamProtectionField.php
rename to src/EditableSpamProtectionField.php
index dfbdf41..0331f1c 100644
--- a/code/EditableSpamProtectionField.php
+++ b/src/EditableSpamProtectionField.php
@@ -3,7 +3,6 @@
 namespace SilverStripe\SpamProtection;
 
 use SilverStripe\Core\ClassInfo;
-use SilverStripe\Core\Convert;
 use SilverStripe\Core\Manifest\ModuleLoader;
 use SilverStripe\Forms\DropdownField;
 use SilverStripe\Forms\FieldGroup;
@@ -41,15 +40,15 @@ class EditableSpamProtectionField extends EditableFormField
      * @var array
      * @config
      */
-    private static $check_fields = array(
+    private static $check_fields = [
         EditableEmailField::class,
         EditableTextField::class,
         EditableNumericField::class
-    );
+    ];
 
-    private static $db = array(
+    private static $db = [
         'SpamFieldSettings' => 'Text'
-    );
+    ];
 
     /**
      * @var FormField
@@ -69,7 +68,7 @@ public function getFormField()
         }
 
         // Extract saved field mappings and update this field.
-        $fieldMapping = array();
+        $fieldMapping = [];
         foreach ($this->getCandidateFields() as $otherField) {
             $mapSetting = "Map-{$otherField->Name}";
             $spamField = $this->spamMapValue($mapSetting);
@@ -106,7 +105,7 @@ protected function getCandidateFields()
 
         // Get list of all configured classes available for spam detection
         $types = $this->config()->get('check_fields');
-        $typesInherit = array();
+        $typesInherit = [];
         foreach ($types as $type) {
             $subTypes = ClassInfo::subclassesFor($type);
             $typesInherit = array_merge($typesInherit, $subTypes);
@@ -132,7 +131,7 @@ public function onBeforeWrite()
     {
         $fieldMap = json_decode($this->SpamFieldSettings ?? '', true);
         if (empty($fieldMap)) {
-            $fieldMap = array();
+            $fieldMap = [];
         }
 
         foreach ($this->record as $key => $value) {
@@ -202,7 +201,7 @@ public function spamMapValue($mapSetting)
     {
         $map = json_decode($this->SpamFieldSettings ?? '', true);
         if (empty($map)) {
-            $map = array();
+            $map = [];
         }
 
         if (array_key_exists($mapSetting, $map ?? [])) {
diff --git a/code/Extension/CommentSpamProtection.php b/src/Extension/CommentSpamProtection.php
similarity index 80%
rename from code/Extension/CommentSpamProtection.php
rename to src/Extension/CommentSpamProtection.php
index f01e44c..fc5f8c9 100644
--- a/code/Extension/CommentSpamProtection.php
+++ b/src/Extension/CommentSpamProtection.php
@@ -14,19 +14,19 @@ class CommentSpamProtection extends Extension
 {
     public function alterCommentForm(&$form)
     {
-        $form->enableSpamProtection(array(
+        $form->enableSpamProtection([
             'name' => 'IsSpam',
-            'mapping' => array(
+            'mapping' => [
                 'Name' => 'authorName',
                 'Email' => 'authorEmail',
                 'URL' => 'authorUrl',
                 'Comment' => 'body',
                 'ReturnURL' => 'contextUrl'
-            ),
-            'checks' => array(
+            ],
+            'checks' => [
                 'spam',
                 'profanity'
-            )
-        ));
+            ]
+        ]);
     }
 }
diff --git a/code/Extension/FormSpamProtectionExtension.php b/src/Extension/FormSpamProtectionExtension.php
similarity index 96%
rename from code/Extension/FormSpamProtectionExtension.php
rename to src/Extension/FormSpamProtectionExtension.php
index 3ff2422..07de263 100644
--- a/code/Extension/FormSpamProtectionExtension.php
+++ b/src/Extension/FormSpamProtectionExtension.php
@@ -37,7 +37,7 @@ class FormSpamProtectionExtension extends Extension
      *
      * @var array $mappable_fields
      */
-    private static $mappable_fields =  array(
+    private static $mappable_fields =  [
         'id',
         'title',
         'body',
@@ -48,7 +48,7 @@ class FormSpamProtectionExtension extends Extension
         'authorUrl',
         'authorIp',
         'authorId'
-    );
+    ];
 
     /**
      * @config
@@ -88,7 +88,7 @@ public static function get_protector($options = null)
      * @throws LogicException when get_protector method returns NULL.
      * @return Object
      */
-    public function enableSpamProtection($options = array())
+    public function enableSpamProtection($options = [])
     {
 
         // captcha form field name (must be unique)
diff --git a/code/SpamProtector.php b/src/SpamProtector.php
similarity index 100%
rename from code/SpamProtector.php
rename to src/SpamProtector.php