diff --git a/csharp/src/Google.Protobuf/Properties/AssemblyInfo.cs b/csharp/src/Google.Protobuf/Properties/AssemblyInfo.cs
index 0516f18e25..1673edfb03 100644
--- a/csharp/src/Google.Protobuf/Properties/AssemblyInfo.cs
+++ b/csharp/src/Google.Protobuf/Properties/AssemblyInfo.cs
@@ -64,4 +64,4 @@ using System.Security;
 
 [assembly: AssemblyVersion("3.0.0.0")]
 [assembly: AssemblyFileVersion("3.0.0.0")]
-[assembly: AssemblyInformationalVersion("3.0.0-beta3")]
+[assembly: AssemblyInformationalVersion("3.0.0-beta4")]