diff --git a/DopplerCustomDomain/DopplerCustomDomain.csproj b/DopplerCustomDomain/DopplerCustomDomain.csproj
index 048bce0..1256db2 100644
--- a/DopplerCustomDomain/DopplerCustomDomain.csproj
+++ b/DopplerCustomDomain/DopplerCustomDomain.csproj
@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Flurl.Http" Version="3.2.4" />
+    <PackageReference Include="Flurl.Http" Version="4.0.1" />
     <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="7.0.14" />
   </ItemGroup>