diff --git a/tests/ForkTest.php b/tests/ForkTest.php
index b3856395..1693bc23 100644
--- a/tests/ForkTest.php
+++ b/tests/ForkTest.php
@@ -23,6 +23,11 @@ public function testForkWorkflow()
         if (!extension_loaded("pcntl")) {
             $this->markTestSkipped("The 'pcntl' extension require to test Cluster::notifyFork helper");
         }
+        $this->markTestSkipped(
+            "PCBC-986: the extension does not restart connections in the child immediately, " .
+            "so this test might produce errors when the child handles responses addressed " .
+            "to the parent."
+        );
         $id = $this->uniqueId();
         $collection = $this->defaultCollection();
         $res = $collection->upsert($id, ["answer" => 42]);