diff --git a/src/EventStoreSyncConnection.php b/src/EventStoreSyncConnection.php
index ebb888a1..26cebebf 100644
--- a/src/EventStoreSyncConnection.php
+++ b/src/EventStoreSyncConnection.php
@@ -14,6 +14,9 @@
 namespace Prooph\EventStoreClient;
 
 use Prooph\EventStoreClient\Internal\ListenerHandler;
+use Prooph\EventStoreClient\Internal\PersistentSubscriptionCreateResult;
+use Prooph\EventStoreClient\Internal\PersistentSubscriptionDeleteResult;
+use Prooph\EventStoreClient\Internal\PersistentSubscriptionUpdateResult;
 
 interface EventStoreSyncConnection
 {
@@ -122,6 +125,29 @@ public function getRawStreamMetadata(string $stream, ?UserCredentials $userCrede
 
     public function setSystemSettings(SystemSettings $settings, ?UserCredentials $userCredentials = null): WriteResult;
 
+    /** @throws Throwable */
+    public function createPersistentSubscription(
+        string $stream,
+        string $groupName,
+        PersistentSubscriptionSettings $settings,
+        ?UserCredentials $userCredentials = null
+    ): PersistentSubscriptionCreateResult;
+
+    /** @throws Throwable */
+    public function updatePersistentSubscription(
+        string $stream,
+        string $groupName,
+        PersistentSubscriptionSettings $settings,
+        ?UserCredentials $userCredentials = null
+    ): PersistentSubscriptionUpdateResult;
+
+    /** @throws Throwable */
+    public function deletePersistentSubscription(
+        string $stream,
+        string $groupName,
+        ?UserCredentials $userCredentials = null
+    ): PersistentSubscriptionDeleteResult;
+
     public function startTransaction(
         string $stream,
         int $expectedVersion,