diff --git a/src/ImageSharp.Drawing/ImageSharp.Drawing.csproj b/src/ImageSharp.Drawing/ImageSharp.Drawing.csproj
index cc1c526ae..f690dac8d 100644
--- a/src/ImageSharp.Drawing/ImageSharp.Drawing.csproj
+++ b/src/ImageSharp.Drawing/ImageSharp.Drawing.csproj
@@ -2,7 +2,7 @@
   <PropertyGroup>
     <Description>An extension to ImageSharp that allows the drawing of images, paths, and text.</Description>
     <AssemblyTitle>ImageSharp.Drawing</AssemblyTitle>
-    <VersionPrefix>1.0.0-alpha3</VersionPrefix>
+    <VersionPrefix>1.0.0-alpha4</VersionPrefix>
     <Authors>James Jackson-South and contributors</Authors>
     <TargetFramework>netstandard1.1</TargetFramework>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
diff --git a/src/ImageSharp/ImageSharp.csproj b/src/ImageSharp/ImageSharp.csproj
index de3e76473..63cb081c3 100644
--- a/src/ImageSharp/ImageSharp.csproj
+++ b/src/ImageSharp/ImageSharp.csproj
@@ -2,7 +2,7 @@
   <PropertyGroup>
     <Description>A cross-platform library for the processing of image files; written in C#</Description>
     <AssemblyTitle>ImageSharp</AssemblyTitle>
-    <VersionPrefix>1.0.0-alpha3</VersionPrefix>
+    <VersionPrefix>1.0.0-alpha4</VersionPrefix>
     <Authors>James Jackson-South and contributors</Authors>
     <TargetFrameworks>netstandard1.3;netstandard1.1</TargetFrameworks>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>