diff --git a/MaxMind.MinFraud/MaxMind.MinFraud.csproj b/MaxMind.MinFraud/MaxMind.MinFraud.csproj
index 123cce0..58c7075 100644
--- a/MaxMind.MinFraud/MaxMind.MinFraud.csproj
+++ b/MaxMind.MinFraud/MaxMind.MinFraud.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <Description>API for MaxMind minFraud Score and Insights web services</Description>
-    <VersionPrefix>5.0.0</VersionPrefix>
+    <VersionPrefix>5.1.0-beta.1</VersionPrefix>
     <TargetFrameworks>net8.0;net7.0;net6.0;netstandard2.1;netstandard2.0</TargetFrameworks>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <AssemblyName>MaxMind.MinFraud</AssemblyName>