diff --git a/example-app-web/package.json b/example-app-web/package.json
index ae206a8..fc7b70b 100644
--- a/example-app-web/package.json
+++ b/example-app-web/package.json
@@ -3,7 +3,7 @@
   "version": "0.1.0",
   "private": true,
   "dependencies": {
-    "immutable": "^4.0.0-rc.12",
+    "immutable": "^4.3.8",
     "react": "^16.6.3",
     "react-dom": "^16.6.3",
     "react-scripts": "2.1.1"
diff --git a/example-app-web/yarn.lock b/example-app-web/yarn.lock
index 9c68795..8b29bc5 100644
--- a/example-app-web/yarn.lock
+++ b/example-app-web/yarn.lock
@@ -4677,10 +4677,10 @@ immer@1.7.2:
   resolved "https://registry.yarnpkg.com/immer/-/immer-1.7.2.tgz#a51e9723c50b27e132f6566facbec1c85fc69547"
   integrity sha512-4Urocwu9+XLDJw4Tc6ZCg7APVjjLInCFvO4TwGsAYV5zT6YYSor14dsZR0+0tHlDIN92cFUOq+i7fC00G5vTxA==
 
-immutable@^4.0.0-rc.12:
-  version "4.0.0-rc.12"
-  resolved "https://registry.yarnpkg.com/immutable/-/immutable-4.0.0-rc.12.tgz#ca59a7e4c19ae8d9bf74a97bdf0f6e2f2a5d0217"
-  integrity sha512-0M2XxkZLx/mi3t8NVwIm1g8nHoEmM9p9UBl/G9k4+hm0kBgOVdMV/B3CY5dQ8qG8qc80NN4gDV4HQv6FTJ5q7A==
+immutable@^4.3.8:
+  version "4.3.8"
+  resolved "https://registry.yarnpkg.com/immutable/-/immutable-4.3.8.tgz#02d183c7727fb2bb1d5d0380da0d779dce9296a7"
+  integrity sha512-d/Ld9aLbKpNwyl0KiM2CT1WYvkitQ1TSvmRtkcV8FKStiDoA7Slzgjmb/1G2yhKM1p0XeNOieaTbFZmU1d3Xuw==
 
 import-cwd@^2.0.0:
   version "2.1.0"