diff --git a/package-lock.json b/package-lock.json
index f1e60ee..1b3833f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1883,9 +1883,9 @@
       "dev": true
     },
     "fast-safe-stringify": {
-      "version": "2.0.8",
-      "resolved": "https://registry.npmjs.org/fast-safe-stringify/-/fast-safe-stringify-2.0.8.tgz",
-      "integrity": "sha512-lXatBjf3WPjmWD6DpIZxkeSsCOwqI0maYMpgDlx8g4U2qi4lbjA9oH/HD2a87G+KfsUmo5WbJFmqBZlPxtptag=="
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/fast-safe-stringify/-/fast-safe-stringify-2.1.1.tgz",
+      "integrity": "sha512-W+KJc2dmILlPplD/H4K9l9LcAHAfPtP6BY84uVLXQ6Evcz9Lcg33Y2z1IVblT6xdY54PXYVHEv+0Wpq8Io6zkA=="
     },
     "fb-watchman": {
       "version": "2.0.1",
diff --git a/package.json b/package.json
index eac8f10..e7b9508 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
     "url": "https://github.com/heppokofrontend/flat-deep/issues"
   },
   "dependencies": {
-    "fast-safe-stringify": "^2.0.8"
+    "fast-safe-stringify": "^2.1.1"
   },
   "devDependencies": {
     "@types/jest": "^26.0.23",