diff --git a/package.json b/package.json
index ac272db..6e2e70c 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "jsdoc": "^4.0.2"
   },
   "dependencies": {
-    "bignumber.js": "^9.1.1",
+    "bignumber.js": "^11.1.4",
     "moment": "^2.29.4"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index bfc3617..121c04d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -849,10 +849,10 @@ balanced-match@^1.0.0:
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.2.tgz#e83e3a7e3f300b34cb9d87f615fa0cbf357690ee"
   integrity sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==
 
-bignumber.js@^9.1.1:
-  version "9.3.1"
-  resolved "https://registry.yarnpkg.com/bignumber.js/-/bignumber.js-9.3.1.tgz#759c5aaddf2ffdc4f154f7b493e1c8770f88c4d7"
-  integrity sha512-Ko0uX15oIUS7wJ3Rb30Fs6SkVbLmPBAKdlm7q9+ak9bbIeFf0MwuBsQV6z7+X768/cHsfg+WlysDWJcmthjsjQ==
+bignumber.js@^11.1.4:
+  version "11.1.4"
+  resolved "https://registry.yarnpkg.com/bignumber.js/-/bignumber.js-11.1.4.tgz#fb2921de84992a4588660460d5c8a2150f73550d"
+  integrity sha512-AJ9dSeaUGj2xu7tEwmdqb51dqdb633xo4njI9K8ZFfcLrNr0XN8/EPkkZUNaF9fkCblGt2zVwZymesUdGynEkQ==
 
 bluebird@^3.7.2:
   version "3.7.2"