diff --git a/tests/lib/DB/QueryBuilder/Partitioned/PartitionedQueryBuilderTest.php b/tests/lib/DB/QueryBuilder/Partitioned/PartitionedQueryBuilderTest.php
index 0397ce687767b..12ba74fe89fe0 100644
--- a/tests/lib/DB/QueryBuilder/Partitioned/PartitionedQueryBuilderTest.php
+++ b/tests/lib/DB/QueryBuilder/Partitioned/PartitionedQueryBuilderTest.php
@@ -26,6 +26,9 @@ class PartitionedQueryBuilderTest extends TestCase {
 	private AutoIncrementHandler $autoIncrementHandler;
 
 	protected function setUp(): void {
+		if (PHP_INT_SIZE < 8) {
+			$this->markTestSkipped('Test requires 64bit');
+		}
 		$this->connection = Server::get(IDBConnection::class);
 		$this->shardConnectionManager = Server::get(ShardConnectionManager::class);
 		$this->autoIncrementHandler = Server::get(AutoIncrementHandler::class);
diff --git a/tests/lib/DB/QueryBuilder/Sharded/SharedQueryBuilderTest.php b/tests/lib/DB/QueryBuilder/Sharded/SharedQueryBuilderTest.php
index 7af93bbbe590a..8f95c1b626352 100644
--- a/tests/lib/DB/QueryBuilder/Sharded/SharedQueryBuilderTest.php
+++ b/tests/lib/DB/QueryBuilder/Sharded/SharedQueryBuilderTest.php
@@ -27,6 +27,9 @@ class SharedQueryBuilderTest extends TestCase {
 	private AutoIncrementHandler $autoIncrementHandler;
 
 	protected function setUp(): void {
+		if (PHP_INT_SIZE < 8) {
+			$this->markTestSkipped('Test requires 64bit');
+		}
 		$this->connection = Server::get(IDBConnection::class);
 		$this->autoIncrementHandler = Server::get(AutoIncrementHandler::class);
 	}