diff --git a/src/Tgstation.Server.Api/Tgstation.Server.Api.csproj b/src/Tgstation.Server.Api/Tgstation.Server.Api.csproj
index 0b6aa59c86..8a3459dfa6 100644
--- a/src/Tgstation.Server.Api/Tgstation.Server.Api.csproj
+++ b/src/Tgstation.Server.Api/Tgstation.Server.Api.csproj
@@ -17,7 +17,7 @@
     <FileVersion>4.0.0.0</FileVersion>
     <PackageTags>json web api tgstation-server tgstation ss13 byond</PackageTags>
     <PackageReleaseNotes>Prototype release</PackageReleaseNotes>
-    <Version>4.0.0.0</Version>
+    <Version>4.0.0.0-preview1</Version>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
diff --git a/src/Tgstation.Server.Client/Tgstation.Server.Client.csproj b/src/Tgstation.Server.Client/Tgstation.Server.Client.csproj
index 46b170baca..9701d04cd4 100644
--- a/src/Tgstation.Server.Client/Tgstation.Server.Client.csproj
+++ b/src/Tgstation.Server.Client/Tgstation.Server.Client.csproj
@@ -3,7 +3,7 @@
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
     <DebugType>Full</DebugType>
-    <Version>4.0.0.0</Version>
+    <Version>4.0.0.0-preview1</Version>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
     <Authors>Cyberboss</Authors>
     <Company>/tg/station 13</Company>