diff --git a/psalm-baseline.xml b/psalm-baseline.xml
index f767b4e4..99bbe5b4 100644
--- a/psalm-baseline.xml
+++ b/psalm-baseline.xml
@@ -1095,9 +1095,6 @@
     </PossiblyUnusedMethod>
   </file>
   <file src="test/PregReplaceTest.php">
-    <DeprecatedMethod>
-      <code><![CDATA[PregReplaceFilter::hasPcreUnicodeSupport()]]></code>
-    </DeprecatedMethod>
     <PossiblyUnusedMethod>
       <code><![CDATA[returnNonStringScalarValues]]></code>
       <code><![CDATA[returnUnfilteredDataProvider]]></code>
diff --git a/src/AbstractFilter.php b/src/AbstractFilter.php
index 6accdef4..efaddfa6 100644
--- a/src/AbstractFilter.php
+++ b/src/AbstractFilter.php
@@ -4,7 +4,6 @@
 
 namespace Laminas\Filter;
 
-use Laminas\Stdlib\StringUtils;
 use Traversable;
 
 use function array_key_exists;
@@ -32,16 +31,6 @@ abstract class AbstractFilter implements FilterInterface
      */
     protected $options = [];
 
-    /**
-     * @deprecated Since 2.1.0
-     *
-     * @return bool
-     */
-    public static function hasPcreUnicodeSupport()
-    {
-        return StringUtils::hasPcreUnicodeSupport();
-    }
-
     /**
      * @param  TOptions|iterable $options
      * @return self
diff --git a/test/PregReplaceTest.php b/test/PregReplaceTest.php
index 345685ed..8c2fd668 100644
--- a/test/PregReplaceTest.php
+++ b/test/PregReplaceTest.php
@@ -10,8 +10,6 @@
 use PHPUnit\Framework\TestCase;
 use stdClass;
 
-use function preg_match;
-
 class PregReplaceTest extends TestCase
 {
     private PregReplaceFilter $filter;
@@ -21,12 +19,6 @@ public function setUp(): void
         $this->filter = new PregReplaceFilter();
     }
 
-    public function testDetectsPcreUnicodeSupport(): void
-    {
-        $enabled = (bool) @preg_match('/\pL/u', 'a');
-        self::assertSame($enabled, PregReplaceFilter::hasPcreUnicodeSupport());
-    }
-
     public function testPassingPatternToConstructorSetsPattern(): void
     {
         $pattern = '#^controller/(?P<action>[a-z_-]+)#';