diff --git a/build.ps1 b/build.ps1
index b2d4a3806207d57f1802348b450f7a4388b0ed8e..d982c8fed0e132604a660a155b4be1a861b80e3f 100644
--- a/build.ps1
+++ b/build.ps1
@@ -32,7 +32,7 @@ cd $PSScriptRoot
 
 $repoFolder = $PSScriptRoot
 $env:REPO_FOLDER = $repoFolder
-$koreBuildZip="https://github.com/aspnet/KoreBuild/archive/rel/2.0.0.zip"
+$koreBuildZip="https://github.com/aspnet/KoreBuild/archive/dev.zip"
 if ($env:KOREBUILD_ZIP)
 {
     $koreBuildZip=$env:KOREBUILD_ZIP
diff --git a/build.sh b/build.sh
index 5e27ed8efb2958b885fd9b744e8df45accde377a..b0bcadb579286546bcd6be3ab4ae4a571132a7c1 100755
--- a/build.sh
+++ b/build.sh
@@ -2,7 +2,7 @@
 repoFolder="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 cd $repoFolder
 
-koreBuildZip="https://github.com/aspnet/KoreBuild/archive/rel/2.0.0.zip"
+koreBuildZip="https://github.com/aspnet/KoreBuild/archive/dev.zip"
 if [ ! -z $KOREBUILD_ZIP ]; then
     koreBuildZip=$KOREBUILD_ZIP
 fi