diff --git a/package-lock.json b/package-lock.json
index bb33bfcea22..1c223594566 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -27,7 +27,7 @@
         "fastestsmallesttextencoderdecoder": "^1.0.22",
         "get-float-time-domain-data": "^0.1.0",
         "get-user-media-promise": "^1.1.4",
-        "immutable": "^3.8.2",
+        "immutable": "^5.0.0",
         "intl": "^1.2.5",
         "js-base64": "^2.4.9",
         "keymirror": "^0.1.1",
@@ -12889,13 +12889,10 @@
       "license": "MIT"
     },
     "node_modules/immutable": {
-      "version": "3.8.3",
-      "resolved": "https://registry.npmjs.org/immutable/-/immutable-3.8.3.tgz",
-      "integrity": "sha512-AUY/VyX0E5XlibOmWt10uabJzam1zlYjwiEgQSDc5+UIkFNaF9WM0JxXKaNMGf+F/ffUF+7kRKXM9A7C0xXqMg==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=0.10.0"
-      }
+      "version": "5.1.5",
+      "resolved": "https://registry.npmjs.org/immutable/-/immutable-5.1.5.tgz",
+      "integrity": "sha512-t7xcm2siw+hlUM68I+UEOK+z84RzmN59as9DZ7P1l0994DKUWV7UXBMQZVxaoMSRQ+PBZbHCOoBt7a2wxOMt+A==",
+      "license": "MIT"
     },
     "node_modules/import-fresh": {
       "version": "3.3.1",
@@ -26077,6 +26074,15 @@
         "ieee754": "^1.2.1"
       }
     },
+    "node_modules/scratch-vm/node_modules/immutable": {
+      "version": "3.8.3",
+      "resolved": "https://registry.npmjs.org/immutable/-/immutable-3.8.3.tgz",
+      "integrity": "sha512-AUY/VyX0E5XlibOmWt10uabJzam1zlYjwiEgQSDc5+UIkFNaF9WM0JxXKaNMGf+F/ffUF+7kRKXM9A7C0xXqMg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/scratch-vm/node_modules/scratch-svg-renderer": {
       "version": "3.0.114",
       "resolved": "https://registry.npmjs.org/scratch-svg-renderer/-/scratch-svg-renderer-3.0.114.tgz",
diff --git a/package.json b/package.json
index 17e38c2f8e5..07489ff902a 100644
--- a/package.json
+++ b/package.json
@@ -50,7 +50,7 @@
     "fastestsmallesttextencoderdecoder": "^1.0.22",
     "get-float-time-domain-data": "^0.1.0",
     "get-user-media-promise": "^1.1.4",
-    "immutable": "^3.8.2",
+    "immutable": "^5.0.0",
     "intl": "^1.2.5",
     "js-base64": "^2.4.9",
     "keymirror": "^0.1.1",