diff --git a/package-lock.json b/package-lock.json
index de1d954..6fc5b68 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1590,9 +1590,9 @@
       "dev": true
     },
     "bignumber.js": {
-      "version": "9.0.0",
-      "resolved": "https://registry.npmjs.org/bignumber.js/-/bignumber.js-9.0.0.tgz",
-      "integrity": "sha512-t/OYhhJ2SD+YGBQcjY8GzzDHEk9f3nerxjtfa6tlMXfe7frs/WozhvCNoGvpM0P3bNf3Gq5ZRMlGr5f3r4/N8A=="
+      "version": "9.1.1",
+      "resolved": "https://registry.npmjs.org/bignumber.js/-/bignumber.js-9.1.1.tgz",
+      "integrity": "sha512-pHm4LsMJ6lzgNGVfZHjMoO8sdoRhOzOH4MLmY65Jg70bpxCKu5iOHNJyfF6OyvYw7t8Fpf35RuzUyqnQsj8Vig=="
     },
     "brace-expansion": {
       "version": "1.1.11",
diff --git a/package.json b/package.json
index 5dc9527..42d3460 100644
--- a/package.json
+++ b/package.json
@@ -56,7 +56,7 @@
     "typescript": "^4.7.4"
   },
   "dependencies": {
-    "bignumber.js": "^9.0.0",
+    "bignumber.js": "^9.1.1",
     "fp-ts": "^1.19.5",
     "io-ts": "^1.10.4"
   }