diff --git a/Directory.Packages.props b/Directory.Packages.props
index 5819f11..d613f8d 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -30,7 +30,7 @@
   <ItemGroup>
     <PackageVersion Include="Microsoft.Azure.Cosmos" Version="3.62.0" />
     <!-- Provider-agnostic AI abstractions: the host brings its own IChatClient. -->
-    <PackageVersion Include="Microsoft.Extensions.AI.Abstractions" Version="10.8.1" />
+    <PackageVersion Include="Microsoft.Extensions.AI.Abstractions" Version="10.8.3" />
     <!-- 2.0 is in preview and tracks a release-candidate protocol revision; stay on stable. -->
     <PackageVersion Include="ModelContextProtocol" Version="1.4.1" />
     <PackageVersion Include="ModelContextProtocol.AspNetCore" Version="1.4.1" />
@@ -50,8 +50,8 @@
     -->
     <PackageVersion Include="SQLitePCLRaw.lib.e_sqlite3" Version="2.1.12" />
     <PackageVersion Include="Temporalio" Version="1.17.0" />
-    <PackageVersion Include="Quartz.Extensions.DependencyInjection" Version="3.18.2" />
-    <PackageVersion Include="Quartz.Extensions.Hosting" Version="3.18.2" />
+    <PackageVersion Include="Quartz.Extensions.DependencyInjection" Version="3.19.1" />
+    <PackageVersion Include="Quartz.Extensions.Hosting" Version="3.19.1" />
     <PackageVersion Include="StackExchange.Redis" Version="3.0.25" />
   </ItemGroup>
 
diff --git a/samples/Healthie.AppHost/Healthie.AppHost.csproj b/samples/Healthie.AppHost/Healthie.AppHost.csproj
index 4705097..d9a2bfa 100644
--- a/samples/Healthie.AppHost/Healthie.AppHost.csproj
+++ b/samples/Healthie.AppHost/Healthie.AppHost.csproj
@@ -19,6 +19,7 @@
   <ItemGroup>
     <PackageReference Include="Aspire.Hosting.AppHost" />
     <PackageReference Include="Aspire.Hosting.Azure.CosmosDB" />
+    <PackageReference Include="Microsoft.Extensions.AI.Abstractions" VersionOverride="10.8.3" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/src/Healthie.Mcp/Healthie.Mcp.csproj b/src/Healthie.Mcp/Healthie.Mcp.csproj
index 65967f6..ab4031b 100644
--- a/src/Healthie.Mcp/Healthie.Mcp.csproj
+++ b/src/Healthie.Mcp/Healthie.Mcp.csproj
@@ -7,6 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.AI.Abstractions" VersionOverride="10.8.3" />
     <PackageReference Include="ModelContextProtocol" />
     <PackageReference Include="ModelContextProtocol.AspNetCore" />
   </ItemGroup>