diff --git a/core/field_textinput.js b/core/field_textinput.js
index 4bd367f37..bd544f08c 100644
--- a/core/field_textinput.js
+++ b/core/field_textinput.js
@@ -531,8 +531,11 @@ Blockly.FieldTextInput.prototype.resizeEditor_ = function() {
  * @deprecated
  */
 Blockly.FieldTextInput.numberValidator = function(text) {
-  console.warn('Blockly.FieldTextInput.numberValidator is deprecated. ' +
-               'Use Blockly.FieldNumber instead.');
+  Blockly.utils.deprecation.warn(
+      'FieldTextInput.numberValidator',
+      'May 2019',
+      'December 2020',
+      'Blockly.FieldNumber');
   if (text === null) {
     return null;
   }