diff --git a/src/fuseraft.csproj b/src/fuseraft.csproj
index 7d06957..1c6ad9b 100644
--- a/src/fuseraft.csproj
+++ b/src/fuseraft.csproj
@@ -27,7 +27,7 @@
     <!-- Microsoft Agent Framework -->
     <PackageReference Include="Cronos" Version="0.13.0" />
     <PackageReference Include="DocumentFormat.OpenXml" Version="3.5.1" />
-    <PackageReference Include="Microsoft.Agents.AI.OpenAI" Version="1.17.0" />
+    <PackageReference Include="Microsoft.Agents.AI.OpenAI" Version="1.20.0" />
     <PackageReference Include="Microsoft.Agents.AI.Workflows" Version="1.17.0" />
 
     <!-- A2A protocol — client-side agent federation -->