diff --git a/package.json b/package.json
index a1418c67b..8505611d2 100644
--- a/package.json
+++ b/package.json
@@ -47,8 +47,7 @@
     "authenticate-e2e-profile": "source scripts/cloud-utils.sh && authenticateWithE2EProfile",
     "extract-dependency-licenses": "./scripts/extract-dependency-licenses.sh",
     "verify-dependency-licenses-extract": "yarn extract-dependency-licenses && ./scripts/verify-dependency-licenses.sh",
-    "deprecate": "ts-node scripts/deprecate_release.ts",
-    "postinstall": "./scripts/postinstall.sh"
+    "deprecate": "ts-node scripts/deprecate_release.ts"
   },
   "bugs": {
     "url": "https://github.com/aws-amplify/amplify-codegen/issues"
diff --git a/scripts/postinstall.sh b/scripts/create-private-package-manifest.sh
similarity index 60%
rename from scripts/postinstall.sh
rename to scripts/create-private-package-manifest.sh
index c77951130..65fa57533 100755
--- a/scripts/postinstall.sh
+++ b/scripts/create-private-package-manifest.sh
@@ -1,5 +1,11 @@
 #!/bin/bash
 
+# set exit on error to true
+set -e
+
+# create a new file to store the private packages
+# this will be imported and used in the Git Client to determine the packages to deprecate
+
 echo 'export default [' > scripts/components/private_packages.ts
 grep -l packages/*/package.json -e '"private": "\?true"\?' | xargs cat | jq .name | tr -s '\n' ',' >> scripts/components/private_packages.ts 
 echo '];' >> scripts/components/private_packages.ts
diff --git a/shared-scripts.sh b/shared-scripts.sh
index f024f69fd..8334b778d 100644
--- a/shared-scripts.sh
+++ b/shared-scripts.sh
@@ -475,6 +475,10 @@ function _deploy {
 function _deprecate {
   loadCacheFromLinuxBuildJob
   echo "Deprecate"
+
+  echo "creating private package manifest"
+  ./scripts/create-private-package-manifest.sh
+
   echo "Authenticate with NPM"
   if [ "$USE_NPM_REGISTRY" == "true" ]; then
       PUBLISH_TOKEN=$(echo "$NPM_PUBLISH_TOKEN" | jq -r '.token')