diff --git a/packages/@aws-cdk/toolkit/build-tools/package.sh b/packages/@aws-cdk/toolkit/build-tools/package.sh
index 74b2e1d02854c..60b5bbfc19a08 100755
--- a/packages/@aws-cdk/toolkit/build-tools/package.sh
+++ b/packages/@aws-cdk/toolkit/build-tools/package.sh
@@ -2,14 +2,17 @@
 
 version=${1:-latest}
 reset=0.0.0
+commit=$(git rev-parse --short HEAD)
 
 # Toolkit package root
 cd "$(dirname $(dirname "$0"))"
 
+npm pkg set version=0.0.0-alpha.$commit
 npm pkg set dependencies.@aws-cdk/cx-api=$version
 npm pkg set dependencies.@aws-cdk/cloudformation-diff=$version
 npm pkg set dependencies.@aws-cdk/region-info=$version
 yarn package --private
+npm pkg set version=$reset
 npm pkg set dependencies.@aws-cdk/cx-api=$reset
 npm pkg set dependencies.@aws-cdk/cloudformation-diff=$reset
 npm pkg set dependencies.@aws-cdk/region-info=$reset
diff --git a/packages/@aws-cdk/toolkit/package.json b/packages/@aws-cdk/toolkit/package.json
index b4f4157c9a8e9..271c2e0168232 100644
--- a/packages/@aws-cdk/toolkit/package.json
+++ b/packages/@aws-cdk/toolkit/package.json
@@ -10,7 +10,8 @@
     ".": {
       "types": "./lib/index.d.ts",
       "default": "./lib/index.js"
-    }
+    },
+    "./package.json": "./package.json"
   },
   "scripts": {
     "awslint": "cdk-awslint",