diff --git a/src/Symfony/Component/Lock/NoLock.php b/src/Symfony/Component/Lock/NoLock.php
index 450428313d0e2..0032dc6bff0cb 100644
--- a/src/Symfony/Component/Lock/NoLock.php
+++ b/src/Symfony/Component/Lock/NoLock.php
@@ -19,8 +19,13 @@
  *
  * @author Wouter de Jong <wouter@wouterj.nl>
  */
-final class NoLock implements LockInterface
+final class NoLock implements SharedLockInterface
 {
+    public function acquireRead(bool $blocking = false): bool
+    {
+        return true;
+    }
+
     public function acquire(bool $blocking = false): bool
     {
         return true;