diff --git a/ImpSoft.OctopusEnergy.Api/ImpSoft.OctopusEnergy.Api.csproj b/ImpSoft.OctopusEnergy.Api/ImpSoft.OctopusEnergy.Api.csproj
index 871ac51..34c9ccb 100644
--- a/ImpSoft.OctopusEnergy.Api/ImpSoft.OctopusEnergy.Api.csproj
+++ b/ImpSoft.OctopusEnergy.Api/ImpSoft.OctopusEnergy.Api.csproj
@@ -8,7 +8,7 @@
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
     <IncludeSymbols>true</IncludeSymbols>
     <SymbolPackageFormat>snupkg</SymbolPackageFormat>
-    <Version>4.0.0-pre.9</Version>
+    <Version>4.0.0-pre.10</Version>
     <Authors>Philip Lee</Authors>
     <Company>ImpSoft</Company>
     <Product>Octopus Energy API wrapper</Product>