diff --git a/README.md b/README.md
index 54f48e5..4b57e3d 100644
--- a/README.md
+++ b/README.md
@@ -80,8 +80,8 @@ export class MoviesStore extends ImmerComponentStore<MoviesState> {
 
 ## `immerReducer`
 
-`immerReducer` is a reducer method by using the Immer `produce` method.
-This method is used by the methods in this library, this idea was inspired by [Alex Okrushko](https://twitter.com/alexokrushko).
+Inspired by [Alex Okrushko](https://twitter.com/alexokrushko), `immerReducer` is a reducer method that uses the Immer `produce` method.
+This method is used by all of the methods in `ngrx-immer` provides.
 
 ## Migrating from `ngrx-etc` to `ngrx-immer`
 
diff --git a/package.json b/package.json
index 348aadf..3c28c85 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "ngrx-immer",
-	"version": "0.0.1",
+	"version": "0.0.2",
 	"description": "Immer wrappers around NgRx methods createReducer, on, and ComponentStore",
 	"keywords": [
 		"NgRx",
@@ -20,15 +20,18 @@
 	"homepage": "https://github.com/timdeschryver/ngrx-immer#readme",
 	"private": false,
 	"sideEffects": false,
-	"module": "shared.js",
-	"types": "shared.d.ts",
+	"main": "cjs/shared.js",
+	"module": "esm/shared.js",
+	"types": "esm/shared.d.ts",
 	"publishConfig": {
 		"access": "public"
 	},
 	"scripts": {
 		"test": "jest",
 		"prebuild": "rimraf dist && rimraf *.tgz",
-		"build": "tsc -p tsconfig-build.json",
+		"build": "npm run build:cjs && npm run build:esm",
+		"build:cjs": "tsc -p tsconfig-build-cjs.json",
+		"build:esm": "tsc -p tsconfig-build-esm.json",
 		"postbuild": "cpy **/package.json ../dist --cwd=./src --parents && cpy package.json dist && cpy README.md dist"
 	},
 	"peerDependencies": {
diff --git a/src/component-store/package.json b/src/component-store/package.json
index e41448f..e8cbbb0 100644
--- a/src/component-store/package.json
+++ b/src/component-store/package.json
@@ -1,4 +1,5 @@
 {
-	"module": "index.js",
-	"types": "index.d.ts"
+	"main": "../cjs/component-store/index.js",
+	"module": "../esm/component-store/index.js",
+	"types": "../esm/component-store/index.d.ts"
 }
diff --git a/src/store/package.json b/src/store/package.json
index e41448f..cf3685a 100644
--- a/src/store/package.json
+++ b/src/store/package.json
@@ -1,4 +1,5 @@
 {
-	"module": "index.js",
-	"types": "index.d.ts"
+	"main": "../cjs/store/index.js",
+	"module": "../esm/store/index.js",
+	"types": "../esm/store/index.d.ts"
 }
diff --git a/tsconfig-build-cjs.json b/tsconfig-build-cjs.json
new file mode 100644
index 0000000..ea2d53f
--- /dev/null
+++ b/tsconfig-build-cjs.json
@@ -0,0 +1,8 @@
+{
+	"compilerOptions": {
+		"module": "commonjs",
+		"outDir": "dist/cjs",
+		"target": "ES2019"
+	},
+	"extends": "./tsconfig-build.json"
+}
diff --git a/tsconfig-build-esm.json b/tsconfig-build-esm.json
new file mode 100644
index 0000000..cb26f02
--- /dev/null
+++ b/tsconfig-build-esm.json
@@ -0,0 +1,8 @@
+{
+	"compilerOptions": {
+		"module": "esnext",
+		"outDir": "dist/esm",
+		"target": "ES2019"
+	},
+	"extends": "./tsconfig-build.json"
+}
diff --git a/tsconfig-build.json b/tsconfig-build.json
index 8ef203c..69d97e1 100644
--- a/tsconfig-build.json
+++ b/tsconfig-build.json
@@ -2,9 +2,6 @@
 	"compilerOptions": {
 		"declaration": true,
 		"sourceMap": true,
-		"module": "esnext",
-		"outDir": "dist",
-		"target": "ES2019"
 	},
 	"include": ["**/*.ts"],
 	"exclude": ["**/*.test.ts"],