diff --git a/DriftMind.csproj b/DriftMind.csproj
index 24bbf8e..5d49696 100644
--- a/DriftMind.csproj
+++ b/DriftMind.csproj
@@ -10,7 +10,7 @@
     <PackageReference Include="Azure.AI.OpenAI" Version="2.1.0" />
     <PackageReference Include="Azure.Search.Documents" Version="11.7.0" />
     <PackageReference Include="Azure.Storage.Blobs" Version="12.27.0" />
-    <PackageReference Include="DocumentFormat.OpenXml" Version="3.4.1" />
+    <PackageReference Include="DocumentFormat.OpenXml" Version="3.5.1" />
     <PackageReference Include="PdfPig" Version="0.1.13" />
     <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="10.0.2" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="10.0.1" />