diff --git a/CHANGELOG.md b/CHANGELOG.md
index ba1cf8d..4333ba0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,8 @@ All notable changes to the IBM® IMS™ Plug-in for Zowe CLI will be documented
 
 ## Recent Changes
 
-- BugFix: Add missing npm-shrinkwrap
+- Deprecated: Added deprecation notices
+- BugFix: Added missing npm-shrinkwrap
 
 ## `2.0.4`
 
diff --git a/README.md b/README.md
index db60c64..372e766 100644
--- a/README.md
+++ b/README.md
@@ -1,11 +1,13 @@
 # IBM® IMS™ Plug-in for Zowe CLI <!-- omit in toc -->
 
+### The IBM® IMS™ Plug-in for Zowe CLI is deprecated, and will not receive additional security updates, bug fixes, or enhancements.
+
 [![codecov](https://codecov.io/gh/zowe/zowe-cli-ims-plugin/branch/master/graph/badge.svg)](https://codecov.io/gh/zowe/zowe-cli-ims-plugin)
 
 The IBM IMS Plug-in for Zowe CLI lets you extend Zowe CLI to interact with IMS resources (programs and transactions). You can use the plug-in to create new IMS applications or update existing IMS applications. For more information about IMS, see [IBM Information Management System (IMS)](https://www.ibm.com/it-infrastructure/z/ims).
 
 - [How the plug-in works](#how-the-plug-in-works)
-- [Software rerequirements](#software-rerequirements)
+- [Software requirements](#software-requirements)
 - [Installing](#installing)
 - [Building from source](#building-from-source)
 - [Creating a user profile](#creating-a-user-profile)
@@ -21,7 +23,7 @@ As an application developer or DevOps administrator, you can use IBM IMS Plug-in
 -   Deploy application code into IMS production or test systems.
 -   Write scripts to automate IMS actions that you traditionally perform using ISPF editors, TSO, and SPOC.
 
-## Software rerequirements
+## Software requirements
 
 <!-- TODO When @latest branch of Zowe docs-site exists, we should give users the option to go and read about/install the @latest or the @lts-incremental versions of this plug-in. We can also explain which branches in the repo correspond to which CLI version. -->
 
diff --git a/package.json b/package.json
index abcb7ab..d3d5024 100644
--- a/package.json
+++ b/package.json
@@ -35,6 +35,7 @@
     "lint": "eslint \"src/**/*.ts\" \"**/__tests__/**/*.ts\"",
     "lint:src": "eslint \"src/**/*.ts\" --ignore-pattern \"**/__tests__/**/*.ts\"",
     "lint:tests": "eslint \"**/__tests__/**/*.ts\"",
+    "postinstall": "echo \"The IBM® IMS™ Plug-in for Zowe CLI is deprecated, and will not receive additional security updates, bug fixes, or enhancements.\" 1>&2",
     "test": "npm run test:unit && npm run test:system",
     "test:system": "env-cmd __tests__/__resources__/env/system.env jest .*/__system__/.* --coverage false --runInBand",
     "test:integration": "env-cmd __tests__/__resources__/env/integration.env jest .*/__integration__/.* --coverage false",