diff --git a/package-lock.json b/package-lock.json
index ca1dd33..de4ebb6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -63,9 +63,9 @@
       "dev": true
     },
     "big.js": {
-      "version": "5.2.2",
-      "resolved": "https://registry.npmjs.org/big.js/-/big.js-5.2.2.tgz",
-      "integrity": "sha512-vyL2OymJxmarO8gxMr0mhChsO9QGwhynfuu4+MHTAW6czfq9humCB7rKpUjDd9YUiDPU4mzpyupFSvOClAwbmQ=="
+      "version": "6.0.2",
+      "resolved": "https://registry.npmjs.org/big.js/-/big.js-6.0.2.tgz",
+      "integrity": "sha512-5PQYFp5ZrznQwD7cNgUHZwpC0gm/Pmh2GiUMSW4KurSXEtjLUVAXnmxYnM2W1X0Dx9JFAcvYJ4IQ+dchanp5VA=="
     },
     "binary-extensions": {
       "version": "2.1.0",
diff --git a/package.json b/package.json
index 4c04c6c..f203355 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "url": "https://github.com/Tabcorp/dollar-string/issues"
   },
   "dependencies": {
-    "big.js": "~5.2.2"
+    "big.js": "~6.0.2"
   },
   "devDependencies": {
     "mocha": "~8.1.0",