diff --git a/src/StringTagField.php b/src/StringTagField.php
index 78d4442..4cc1c04 100644
--- a/src/StringTagField.php
+++ b/src/StringTagField.php
@@ -173,7 +173,7 @@ public function getSchemaDataDefaults()
                 'lazyLoad' => $this->getShouldLazyLoad(),
                 'creatable' => $this->getCanCreate(),
                 'multi' => $this->getIsMultiple(),
-                'value' => $this->formatOptions($this->Value()),
+                'value' => $this->formatOptions($this->getFormattedValue()),
                 'disabled' => $this->isDisabled() || $this->isReadonly(),
             ]
         );
@@ -384,7 +384,7 @@ public function setCanCreate($canCreate)
     public function performReadonlyTransformation()
     {
         $field = parent::performReadonlyTransformation();
-        $field->setValue(implode(', ', $this->Value()));
+        $field->setValue(implode(', ', $this->getFormattedValue()));
         return $field;
     }
 }
diff --git a/tests/StringTagFieldTest.php b/tests/StringTagFieldTest.php
index 1a766c2..efadf92 100755
--- a/tests/StringTagFieldTest.php
+++ b/tests/StringTagFieldTest.php
@@ -140,18 +140,18 @@ public function testPerformReadonlyTransformation()
         // Ensure a single value can be rendered
         $field->setValue(['Test2']);
         $field_readonly = $field->performReadonlyTransformation();
-        $this->assertEquals('Test2', $field_readonly->Value());
+        $this->assertEquals('Test2', $field_readonly->getFormattedValue());
 
         // Ensure multiple valid values are rendered
         $field->setValue(['Test1', 'Test2']);
         $field_readonly = $field->performReadonlyTransformation();
-        $this->assertEquals('Test1, Test2', $field_readonly->Value());
+        $this->assertEquals('Test1, Test2', $field_readonly->getFormattedValue());
 
         // Ensure an value not in the source array is still rendered
         // (because e.g. in history view it must have been a valid value when it was set)
         $field->setValue(['Test', 'Test1']);
         $field_readonly = $field->performReadonlyTransformation();
-        $this->assertEquals('Test, Test1', $field_readonly->Value());
+        $this->assertEquals('Test, Test1', $field_readonly->getFormattedValue());
     }
 
     /**
diff --git a/tests/TagFieldTest.php b/tests/TagFieldTest.php
index 0513b61..6a348b2 100755
--- a/tests/TagFieldTest.php
+++ b/tests/TagFieldTest.php
@@ -337,7 +337,7 @@ public function testItDisplaysValuesFromRelations()
 
         $ids = TagFieldTestBlogTag::get()->column('ID');
 
-        $this->assertEquals($field->Value(), $ids);
+        $this->assertEquals($field->getValue(), $ids);
     }
 
     public function testItIgnoresNewTagsIfCannotCreate()