diff --git a/Jellyfin.Api/Jellyfin.Api.csproj b/Jellyfin.Api/Jellyfin.Api.csproj
index 25d5d0c893..a8de171ccc 100644
--- a/Jellyfin.Api/Jellyfin.Api.csproj
+++ b/Jellyfin.Api/Jellyfin.Api.csproj
@@ -9,6 +9,7 @@
netstandard2.1
true
true
+ enable
diff --git a/Jellyfin.Api/Models/StartupDtos/StartupConfigurationDto.cs b/Jellyfin.Api/Models/StartupDtos/StartupConfigurationDto.cs
index d048dad0a1..5a83a030d2 100644
--- a/Jellyfin.Api/Models/StartupDtos/StartupConfigurationDto.cs
+++ b/Jellyfin.Api/Models/StartupDtos/StartupConfigurationDto.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
namespace Jellyfin.Api.Models.StartupDtos
{
///
diff --git a/Jellyfin.Api/Models/StartupDtos/StartupUserDto.cs b/Jellyfin.Api/Models/StartupDtos/StartupUserDto.cs
index 3a9348037a..0dbb245ec6 100644
--- a/Jellyfin.Api/Models/StartupDtos/StartupUserDto.cs
+++ b/Jellyfin.Api/Models/StartupDtos/StartupUserDto.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
namespace Jellyfin.Api.Models.StartupDtos
{
///
diff --git a/Jellyfin.Data/Jellyfin.Data.csproj b/Jellyfin.Data/Jellyfin.Data.csproj
index 9157c3ead9..c2c105917d 100644
--- a/Jellyfin.Data/Jellyfin.Data.csproj
+++ b/Jellyfin.Data/Jellyfin.Data.csproj
@@ -4,6 +4,7 @@
netstandard2.0;netstandard2.1
false
true
+ true
diff --git a/RSSDP/RSSDP.csproj b/RSSDP/RSSDP.csproj
index e3f3127b64..5536931717 100644
--- a/RSSDP/RSSDP.csproj
+++ b/RSSDP/RSSDP.csproj
@@ -14,6 +14,7 @@
netstandard2.1
false
+ true