diff --git a/README.md b/README.md
index ab16bbb76a..fdf14b4963 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@ ImageSharp is a new, fully featured, fully managed, cross-platform, 2D graphics
 
 ImageSharp is designed from the ground up to be flexible and extensible. The library provides API endpoints for common image processing operations and the building blocks to allow for the development of additional operations.
 
-Built against [.NET Standard 1.3](https://docs.microsoft.com/en-us/dotnet/standard/net-standard), ImageSharp can be used in device, cloud, and embedded/IoT scenarios.
+Built against [.NET Standard 2.0](https://docs.microsoft.com/en-us/dotnet/standard/net-standard), ImageSharp can be used in device, cloud, and embedded/IoT scenarios.
 
 
 ## License
diff --git a/src/ImageSharp/Formats/Tiff/Compression/Compressors/DeflateCompressor.cs b/src/ImageSharp/Formats/Tiff/Compression/Compressors/DeflateCompressor.cs
index 225036f909..c240c06ef6 100644
--- a/src/ImageSharp/Formats/Tiff/Compression/Compressors/DeflateCompressor.cs
+++ b/src/ImageSharp/Formats/Tiff/Compression/Compressors/DeflateCompressor.cs
@@ -43,15 +43,8 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Compression.Compressors
             }
 
             int size = (int)this.memoryStream.Position;
-
-#if !NETSTANDARD1_3
             byte[] buffer = this.memoryStream.GetBuffer();
             this.Output.Write(buffer, 0, size);
-#else
-            this.memoryStream.SetLength(size);
-            this.memoryStream.Position = 0;
-            this.memoryStream.CopyTo(this.Output);
-#endif
         }
 
         /// <inheritdoc/>
diff --git a/src/ImageSharp/ImageSharp.csproj b/src/ImageSharp/ImageSharp.csproj
index afe10b1f9c..0a75c06db6 100644
--- a/src/ImageSharp/ImageSharp.csproj
+++ b/src/ImageSharp/ImageSharp.csproj
@@ -23,12 +23,12 @@
   <Choose>
     <When Condition="$(SIXLABORS_TESTING_PREVIEW) == true">
       <PropertyGroup>
-        <TargetFrameworks>net6.0;net5.0;netcoreapp3.1;netcoreapp2.1;netstandard2.1;netstandard2.0;netstandard1.3;net472</TargetFrameworks>
+        <TargetFrameworks>net6.0;net5.0;netcoreapp3.1;netcoreapp2.1;netstandard2.1;netstandard2.0;net472</TargetFrameworks>
       </PropertyGroup>
     </When>
     <When Condition="$(SIXLABORS_TESTING) == true">
       <PropertyGroup>
-        <TargetFrameworks>net5.0;netcoreapp3.1;netcoreapp2.1;netstandard2.1;netstandard2.0;netstandard1.3;net472</TargetFrameworks>
+        <TargetFrameworks>net5.0;netcoreapp3.1;netcoreapp2.1;netstandard2.1;netstandard2.0;net472</TargetFrameworks>
       </PropertyGroup>
     </When>
     <When Condition="$(Configuration.EndsWith('InnerLoop')) == true">
@@ -38,7 +38,7 @@
     </When>
     <Otherwise>
       <PropertyGroup>
-        <TargetFrameworks>netcoreapp3.1;netcoreapp2.1;netstandard2.1;netstandard2.0;netstandard1.3;net472</TargetFrameworks>
+        <TargetFrameworks>netcoreapp3.1;netcoreapp2.1;netstandard2.1;netstandard2.0;net472</TargetFrameworks>
       </PropertyGroup>
     </Otherwise>
   </Choose>