diff --git a/src/Prowlarr.Api.V1/DownloadClient/DownloadClientController.cs b/src/Prowlarr.Api.V1/DownloadClient/DownloadClientController.cs
index dfaf24a9e..347c7e9c6 100644
--- a/src/Prowlarr.Api.V1/DownloadClient/DownloadClientController.cs
+++ b/src/Prowlarr.Api.V1/DownloadClient/DownloadClientController.cs
@@ -1,3 +1,4 @@
+using FluentValidation;
 using NzbDrone.Core.Download;
 using NzbDrone.SignalR;
 using Prowlarr.Http;
@@ -13,6 +14,7 @@ namespace Prowlarr.Api.V1.DownloadClient
         public DownloadClientController(IBroadcastSignalRMessage signalRBroadcaster, IDownloadClientFactory downloadClientFactory)
             : base(signalRBroadcaster, downloadClientFactory, "downloadclient", ResourceMapper, BulkResourceMapper)
         {
+            SharedValidator.RuleFor(c => c.Priority).InclusiveBetween(1, 50);
         }
     }
 }
diff --git a/src/Prowlarr.Api.V1/Indexers/IndexerController.cs b/src/Prowlarr.Api.V1/Indexers/IndexerController.cs
index 6f360a574..07955299d 100644
--- a/src/Prowlarr.Api.V1/Indexers/IndexerController.cs
+++ b/src/Prowlarr.Api.V1/Indexers/IndexerController.cs
@@ -21,6 +21,7 @@ namespace Prowlarr.Api.V1.Indexers
                 .ValidId()
                 .SetValidator(appProfileExistsValidator);
 
+            SharedValidator.RuleFor(c => c.Priority).InclusiveBetween(1, 50);
             SharedValidator.RuleFor(c => c.DownloadClientId).SetValidator(downloadClientExistsValidator);
         }
     }