diff --git a/package.json b/package.json
index 402e407a..5673267c 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
   "devDependencies": {
     "@storybook/addon-actions": "^3.3.10",
     "@storybook/addon-links": "^3.3.10",
-    "@storybook/react": "^3.3.10",
+    "@storybook/react": "^4.0.0",
     "@types/chai": "4.1.1",
     "@types/jest": "22.0.1",
     "@types/node": "9.3.0",
@@ -63,7 +63,7 @@
     "react-markdown": "3.1.4",
     "react-test-renderer": "16.2.0",
     "rimraf": "2.6.2",
-    "to-string-loader": "1.1.5",
+    "to-string-loader": "1.1.6",
     "ts-jest": "22.0.1",
     "ts-loader": "3.2.0",
     "ts-node": "4.1.0",