diff --git a/src/AzureCosmosDB.MCP.Toolkit/AzureCosmosDB.MCP.Toolkit.csproj b/src/AzureCosmosDB.MCP.Toolkit/AzureCosmosDB.MCP.Toolkit.csproj
index f7a1e6a..2b0749c 100644
--- a/src/AzureCosmosDB.MCP.Toolkit/AzureCosmosDB.MCP.Toolkit.csproj
+++ b/src/AzureCosmosDB.MCP.Toolkit/AzureCosmosDB.MCP.Toolkit.csproj
@@ -32,7 +32,7 @@
     <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="9.0.16" />
     <PackageReference Include="Microsoft.IdentityModel.JsonWebTokens" Version="8.18.0" />
     <PackageReference Include="Microsoft.IdentityModel.Protocols.OpenIdConnect" Version="8.18.0" />
-    <PackageReference Include="Microsoft.IdentityModel.Tokens" Version="8.18.0" />
+    <PackageReference Include="Microsoft.IdentityModel.Tokens" Version="8.19.1" />
     <PackageReference Include="System.IdentityModel.Tokens.Jwt" Version="8.18.0" />
   </ItemGroup>