Upgrade pagckages

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@umbrellio/observable",
-  "version": "1.3.2",
+  "version": "1.3.3",
   "description": "Observable library",
   "repository": "git@github.com:umbrellio/observable.git",
   "author": "Aleksei Bespalov <nulldefiner@gmail.com>",
@@ -16,29 +16,29 @@
     "test:coverage": "jest --coverage"
   },
   "devDependencies": {
-    "@babel/cli": "^7.10.5",
-    "@babel/core": "^7.11.1",
-    "@babel/plugin-proposal-class-properties": "^7.10.4",
-    "@babel/plugin-transform-react-jsx": "^7.10.4",
-    "@babel/preset-env": "^7.11.0",
+    "@babel/cli": "^7.13.16",
+    "@babel/core": "^7.14.2",
+    "@babel/plugin-proposal-class-properties": "^7.13.0",
+    "@babel/plugin-transform-react-jsx": "^7.13.12",
+    "@babel/preset-env": "^7.14.2",
     "@rollup/plugin-babel": "^5.3.0",
-    "@rollup/plugin-node-resolve": "^11.2.1",
+    "@rollup/plugin-node-resolve": "^13.0.0",
+    "@wojtekmaj/enzyme-adapter-react-17": "^0.6.1",
     "babel-eslint": "^10.1.0",
     "coveralls": "^3.1.0",
-    "enzyme-adapter-react-16": "^1.15.3",
-    "eslint": "^7.7.0",
+    "eslint": "^7.26.0",
     "eslint-config-umbrellio": "^5.0.1",
-    "eslint-plugin-import": "^2.22.0",
-    "eslint-plugin-jest": "^23.20.0",
-    "eslint-plugin-jsx-a11y": "^6.3.1",
+    "eslint-plugin-import": "^2.22.1",
+    "eslint-plugin-jest": "^24.3.6",
+    "eslint-plugin-jsx-a11y": "^6.4.1",
     "eslint-plugin-node": "^11.1.0",
     "eslint-plugin-prefer-object-spread": "^1.2.1",
-    "eslint-plugin-promise": "^4.2.1",
-    "eslint-plugin-react": "^7.20.6",
-    "jest": "^26.4.1",
-    "react": "^16.13.1",
-    "react-dom": "^16.13.1",
-    "rollup": "^2.26.4"
+    "eslint-plugin-promise": "^5.1.0",
+    "eslint-plugin-react": "^7.23.2",
+    "jest": "^26.6.3",
+    "react": "^17.0.2",
+    "react-dom": "^17.0.2",
+    "rollup": "^2.47.0"
   },
   "peerDependencies": {
     "react": "^16.13.1"

src/observer.js

@@ -16,7 +16,7 @@ const observer = (store, { key, map }) => WrappedComponent => {
     }
 
     componentWillUnmount () {
-      this.unsubscribe()
+      this.unsubscribe && this.unsubscribe()
       this.unsubscribe = null
       this.mounted = false
     }

tests/multipleObserver.test.js

@@ -1,5 +1,5 @@
 import React from "react"
-import Adapter from "enzyme-adapter-react-16"
+import Adapter from "@wojtekmaj/enzyme-adapter-react-17"
 import Enzyme from "enzyme"
 
 import { observable, multipleObserver } from "../src"

tests/observer.test.js

@@ -1,5 +1,5 @@
 import React from "react"
-import Adapter from "enzyme-adapter-react-16"
+import Adapter from "@wojtekmaj/enzyme-adapter-react-17"
 import Enzyme from "enzyme"
 
 import { observable } from "../src"

tests/useStore.test.js

@@ -1,5 +1,5 @@
 import React from "react"
-import Adapter from "enzyme-adapter-react-16"
+import Adapter from "@wojtekmaj/enzyme-adapter-react-17"
 import { configure, mount } from "enzyme"
 import { act } from "react-dom/test-utils"