diff --git a/StyleCop.Analyzers/StyleCop.Analyzers/Properties/AssemblyInfo.cs b/StyleCop.Analyzers/StyleCop.Analyzers/Properties/AssemblyInfo.cs
index 26c1c96b7..ee4955686 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers/Properties/AssemblyInfo.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers/Properties/AssemblyInfo.cs
@@ -34,6 +34,6 @@
 // by using the '*' as shown below:
 [assembly: AssemblyVersion("1.0.0.0")]
 [assembly: AssemblyFileVersion("1.0.0.0")]
-[assembly: AssemblyInformationalVersion("1.0.0-dev")]
+[assembly: AssemblyInformationalVersion("1.0.0-beta009")]
 
 [assembly: InternalsVisibleTo("StyleCop.Analyzers.Test, PublicKey=0024000004800000940000000602000000240000525341310004000001000100c36d40d996fcc95fb6a89754728616758f459026e31478ce93633b3e27a4af416f103aa3d7a9e7998f829f8715cc1240d30724fd662042550fa71357b19562622424267e9e4640c403edbe64709a9ca5918128a9b9020b0db6e770d0dd1eac888869c23a835b74bde00e171984b1d1c24636cf030f0b23106e73035a2be145a6")]
diff --git a/build/version.ps1 b/build/version.ps1
index 18ab0f945..fd0870e22 100644
--- a/build/version.ps1
+++ b/build/version.ps1
@@ -1 +1 @@
-$Version = "1.0.0-dev"
+$Version = "1.0.0-beta009"