diff --git a/dotnet/src/dotnetcore/Providers/Storage/GXAmazonS3/GXAmazonS3.csproj b/dotnet/src/dotnetcore/Providers/Storage/GXAmazonS3/GXAmazonS3.csproj
index 927009f41..2f83482a0 100644
--- a/dotnet/src/dotnetcore/Providers/Storage/GXAmazonS3/GXAmazonS3.csproj
+++ b/dotnet/src/dotnetcore/Providers/Storage/GXAmazonS3/GXAmazonS3.csproj
@@ -12,7 +12,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="AWSSDK.S3" Version="3.7.3.15" />
+    <PackageReference Include="AWSSDK.S3" Version="3.7.9.24" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/dotnet/src/dotnetframework/Providers/Storage/GXAmazonS3/ExternalProviderS3.cs b/dotnet/src/dotnetframework/Providers/Storage/GXAmazonS3/ExternalProviderS3.cs
index 91faea310..5657daabe 100644
--- a/dotnet/src/dotnetframework/Providers/Storage/GXAmazonS3/ExternalProviderS3.cs
+++ b/dotnet/src/dotnetframework/Providers/Storage/GXAmazonS3/ExternalProviderS3.cs
@@ -96,6 +96,13 @@ private void Initialize() {
 				config.ServiceURL = Endpoint;
 				customEndpoint = true;
 			}
+			else
+			{
+				if (region == Amazon.RegionEndpoint.USEast1)
+				{
+					Amazon.AWSConfigsS3.UseSignatureVersion4 = true;
+				}
+			}
 
 #if NETCORE
 			if (credentials != null)
diff --git a/dotnet/src/dotnetframework/Providers/Storage/GXAmazonS3/GXAmazonS3.csproj b/dotnet/src/dotnetframework/Providers/Storage/GXAmazonS3/GXAmazonS3.csproj
index af52d1e4c..be853d2d5 100644
--- a/dotnet/src/dotnetframework/Providers/Storage/GXAmazonS3/GXAmazonS3.csproj
+++ b/dotnet/src/dotnetframework/Providers/Storage/GXAmazonS3/GXAmazonS3.csproj
@@ -7,7 +7,7 @@
 		<PackageId>GeneXus.Amazon</PackageId>
 	</PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="AWSSDK.S3" Version="3.7.3.15" />
+    <PackageReference Include="AWSSDK.S3" Version="3.7.9.24" />
     <PackageReference Include="log4net" Version="2.0.11" />
   </ItemGroup>
   <ItemGroup>