diff --git a/identity-server/hosts/Shared/Host.Shared.csproj b/identity-server/hosts/Shared/Host.Shared.csproj
index dee7a1949..724447fa3 100644
--- a/identity-server/hosts/Shared/Host.Shared.csproj
+++ b/identity-server/hosts/Shared/Host.Shared.csproj
@@ -5,6 +5,7 @@
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
     <RootNamespace>Duende.IdentityServer.Hosts.Shared</RootNamespace>
+    <IsPackable>false</IsPackable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/identity-server/hosts/UI/AspNetIdentity/UI.AspNetIdentity.csproj b/identity-server/hosts/UI/AspNetIdentity/UI.AspNetIdentity.csproj
index c4badcf24..8286ca8bb 100644
--- a/identity-server/hosts/UI/AspNetIdentity/UI.AspNetIdentity.csproj
+++ b/identity-server/hosts/UI/AspNetIdentity/UI.AspNetIdentity.csproj
@@ -7,6 +7,7 @@
     <AddRazorSupportForMvc>true</AddRazorSupportForMvc>
     <RootNamespace>Duende.IdentityServer.UI.AspNetIdentity</RootNamespace>
     <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
+    <IsPackable>false</IsPackable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/identity-server/hosts/UI/EntityFramework/UI.EntityFramework.csproj b/identity-server/hosts/UI/EntityFramework/UI.EntityFramework.csproj
index 64c46b889..90af3cddc 100644
--- a/identity-server/hosts/UI/EntityFramework/UI.EntityFramework.csproj
+++ b/identity-server/hosts/UI/EntityFramework/UI.EntityFramework.csproj
@@ -7,6 +7,7 @@
     <AddRazorSupportForMvc>true</AddRazorSupportForMvc>
     <RootNamespace>Duende.IdentityServer.UI.EntityFramework</RootNamespace>
     <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
+    <IsPackable>false</IsPackable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/identity-server/hosts/UI/Main/UI.Main.csproj b/identity-server/hosts/UI/Main/UI.Main.csproj
index b396d5c26..14622405b 100644
--- a/identity-server/hosts/UI/Main/UI.Main.csproj
+++ b/identity-server/hosts/UI/Main/UI.Main.csproj
@@ -8,6 +8,7 @@
     <RootNamespace>Duende.IdentityServer.UI</RootNamespace>
     <GenerateEmbeddedFilesManifest>true</GenerateEmbeddedFilesManifest>
     <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
+    <IsPackable>false</IsPackable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/shared/Xunit.Playwright/Duende.Xunit.Playwright.csproj b/shared/Xunit.Playwright/Duende.Xunit.Playwright.csproj
index fe2a6dc09..5942a9e3a 100644
--- a/shared/Xunit.Playwright/Duende.Xunit.Playwright.csproj
+++ b/shared/Xunit.Playwright/Duende.Xunit.Playwright.csproj
@@ -7,6 +7,7 @@
     <RootNamespace>Duende.Xunit.Playwright</RootNamespace>
     <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
     <IsTestProject>false</IsTestProject>
+    <IsPackable>false</IsPackable>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug_ncrunch|AnyCPU'">