diff --git a/package-lock.json b/package-lock.json
index 6933b41..5103985 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2347,9 +2347,9 @@
       }
     },
     "confusing-browser-globals": {
-      "version": "1.0.5",
-      "resolved": "https://registry.npmjs.org/confusing-browser-globals/-/confusing-browser-globals-1.0.5.tgz",
-      "integrity": "sha512-tHo1tQL/9Ox5RELbkCAJhnViqWlzBz3MG1bB2czbHjH2mWd4aYUgNCNLfysFL7c4LoDws7pjg2tj48Gmpw4QHA==",
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/confusing-browser-globals/-/confusing-browser-globals-1.0.7.tgz",
+      "integrity": "sha512-cgHI1azax5ATrZ8rJ+ODDML9Fvu67PimB6aNxBrc/QwSaDaM9eTfIEUHx3bBLJJ82ioSb+/5zfsMCCEJax3ByQ==",
       "dev": true
     },
     "console-browserify": {
@@ -3245,12 +3245,12 @@
       }
     },
     "eslint-config-react-app": {
-      "version": "3.0.6",
-      "resolved": "https://registry.npmjs.org/eslint-config-react-app/-/eslint-config-react-app-3.0.6.tgz",
-      "integrity": "sha512-VL5rA1EBZv7f9toc9x71or7nr4jRmwCH4V9JKB9DFVaTLOLI9+vjWLgQLjMu3xR9iUT80dty86RbCfNaKyrFFg==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/eslint-config-react-app/-/eslint-config-react-app-4.0.0.tgz",
+      "integrity": "sha512-SeFxaI+0NAzWPFAI9AT+Vp9Xe2u5RCnn0JVEXkE338HgoPujc38Bc0upCJw4BWmavvIN/ODmE6EuzHoAEn3ozw==",
       "dev": true,
       "requires": {
-        "confusing-browser-globals": "^1.0.5"
+        "confusing-browser-globals": "^1.0.7"
       }
     },
     "eslint-import-resolver-node": {
@@ -5208,7 +5208,7 @@
     },
     "is-accessor-descriptor": {
       "version": "0.1.6",
-      "resolved": "http://registry.npmjs.org/is-accessor-descriptor/-/is-accessor-descriptor-0.1.6.tgz",
+      "resolved": "https://registry.npmjs.org/is-accessor-descriptor/-/is-accessor-descriptor-0.1.6.tgz",
       "integrity": "sha1-qeEss66Nh2cn7u84Q/igiXtcmNY=",
       "dev": true,
       "requires": {
@@ -5262,7 +5262,7 @@
     },
     "is-data-descriptor": {
       "version": "0.1.4",
-      "resolved": "http://registry.npmjs.org/is-data-descriptor/-/is-data-descriptor-0.1.4.tgz",
+      "resolved": "https://registry.npmjs.org/is-data-descriptor/-/is-data-descriptor-0.1.4.tgz",
       "integrity": "sha1-C17mSDiOLIYCgueT8YVv7D8wG1Y=",
       "dev": true,
       "requires": {
diff --git a/package.json b/package.json
index b5e2557..86b3225 100644
--- a/package.json
+++ b/package.json
@@ -74,7 +74,7 @@
     "cross-env": "^5.2.0",
     "css-loader": "^2.1.0",
     "eslint": "^5.12.0",
-    "eslint-config-react-app": "^3.0.6",
+    "eslint-config-react-app": "^4.0.0",
     "eslint-plugin-flowtype": "^3.2.1",
     "eslint-plugin-import": "^2.7.0",
     "eslint-plugin-jsx-a11y": "^6.1.2",