diff --git a/src/MongoDb/Synchronization/DistributedLockThingy.cs b/src/MongoDb/Synchronization/DistributedLockThingy.cs
index 7a2ae61..45c8be7 100644
--- a/src/MongoDb/Synchronization/DistributedLockThingy.cs
+++ b/src/MongoDb/Synchronization/DistributedLockThingy.cs
@@ -127,6 +127,10 @@ private async Task<bool> InnerTryAcquireAsync(InternalDistributedLockDefinition
         {
             return false;
         }
+        catch (OperationCanceledException) when (ct.IsCancellationRequested)
+        {
+            return false;
+        }
         catch (Exception ex)
         {
             LogErrorAcquiringLock(logger, ex, lockDefinition.Id, lockDefinition.Context);