diff --git a/core/modules/views/lib/Drupal/views/Plugin/views/filter/Date.php b/core/modules/views/lib/Drupal/views/Plugin/views/filter/Date.php
index 18cc316..f4c2103 100644
--- a/core/modules/views/lib/Drupal/views/Plugin/views/filter/Date.php
+++ b/core/modules/views/lib/Drupal/views/Plugin/views/filter/Date.php
@@ -164,7 +164,7 @@ public function acceptExposedInput($input) {
     return $rc;
   }
 
-  public function opBetween($field) {
+  protected function opBetween($field) {
     $a = intval(strtotime($this->value['min'], 0));
     $b = intval(strtotime($this->value['max'], 0));
 
diff --git a/core/modules/views/lib/Drupal/views/Plugin/views/filter/GroupByNumeric.php b/core/modules/views/lib/Drupal/views/Plugin/views/filter/GroupByNumeric.php
index 0427ee8..085775a 100644
--- a/core/modules/views/lib/Drupal/views/Plugin/views/filter/GroupByNumeric.php
+++ b/core/modules/views/lib/Drupal/views/Plugin/views/filter/GroupByNumeric.php
@@ -27,7 +27,7 @@ public function query() {
       $this->{$info[$this->operator]['method']}($field);
     }
   }
-  public function opBetween($field) {
+  protected function opBetween($field) {
     $placeholder_min = $this->placeholder();
     $placeholder_max = $this->placeholder();
     if ($this->operator == 'between') {
diff --git a/core/modules/views/lib/Drupal/views/Plugin/views/filter/Numeric.php b/core/modules/views/lib/Drupal/views/Plugin/views/filter/Numeric.php
index de840e2..0505dc5 100644
--- a/core/modules/views/lib/Drupal/views/Plugin/views/filter/Numeric.php
+++ b/core/modules/views/lib/Drupal/views/Plugin/views/filter/Numeric.php
@@ -251,7 +251,7 @@ public function query() {
     }
   }
 
-  public function opBetween($field) {
+  protected function opBetween($field) {
     if ($this->operator == 'between') {
       $this->query->add_where($this->options['group'], $field, array($this->value['min'], $this->value['max']), 'BETWEEN');
     }