diff --git a/.circleci/config.yml b/.circleci/config.yml
index 2e2a94d5944..d9e302b20cc 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -1592,17 +1592,11 @@ jobs:
             - amplify-ssh-deps-{{ .Branch }}
             - amplify-ssh-deps
       - run:
-          name: 'Update library version'
+          name: 'Update API documentation'
           command: |
             git config --global user.email $GITHUB_EMAIL
             git config --global user.name $GITHUB_USER
             git pull origin release
-            yarn workspace @aws-amplify/core build
-            git add ./packages/core/src/Platform/version.ts
-            git commit -m "chore(release): update version.ts [ci skip]"
-      - run:
-          name: 'Update API documentation'
-          command: |
             yarn run docs
             git add ./docs/api/
             git commit -m "chore(release): update API docs [ci skip]"
diff --git a/.gitignore b/.gitignore
index ebf4d950ae4..ea82d0b8e71 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,6 +20,9 @@ package-lock.json
 packages/*/.watchmanconfig
 dual-publish-tmp
 
+### Version file - core build artifact
+packages/core/src/Platform/version.ts
+
 ### Gradle ###
 .gradle/
 local.properties
diff --git a/packages/core/package.json b/packages/core/package.json
index 1e0c0567bec..63dd9515b5d 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -23,11 +23,12 @@
 		"build:cjs:watch": "node ./build es5 --watch",
 		"build:esm:watch": "rimraf lib-esm && node ./build es6 --watch",
 		"build": "npm run clean && npm run generate-version && npm run build:esm && npm run build:cjs",
-		"generate-version": "genversion src/Platform/version.ts --es6 --semi",
+		"generate-version": "genversion src/Platform/version.ts --es6 --semi --source ../aws-amplify",
 		"clean": "npm run clean:size && rimraf lib-esm lib dist",
 		"clean:size": "rimraf dual-publish-tmp tmp*",
 		"format": "echo \"Not implemented\"",
 		"lint": "tslint 'src/**/*.ts' && npm run ts-coverage",
+		"prepublishOnly": "npm run build",
 		"ts-coverage": "typescript-coverage-report -p ./tsconfig.build.json -t 76.41"
 	},
 	"react-native": {
diff --git a/packages/core/src/Platform/version.ts b/packages/core/src/Platform/version.ts
deleted file mode 100644
index 1fff5321795..00000000000
--- a/packages/core/src/Platform/version.ts
+++ /dev/null
@@ -1,2 +0,0 @@
-// generated by genversion
-export const version = '5.1.13';