diff --git a/packages/sdk-core/package.json b/packages/sdk-core/package.json
index 94bf3daf..90f73ef6 100644
--- a/packages/sdk-core/package.json
+++ b/packages/sdk-core/package.json
@@ -21,7 +21,7 @@
   "dependencies": {
     "@acala-network/types": "^6.0.0-34",
     "@polkadot/api": "^10.9.1",
-    "bignumber.js": "^9.0.0",
+    "bignumber.js": "^9.1.2",
     "lodash": "^4.17.20"
   },
   "devDependencies": {
diff --git a/yarn.lock b/yarn.lock
index a13c4f84..9a56a5d7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -92,7 +92,7 @@ __metadata:
     "@acala-network/types": ^6.0.0-34
     "@polkadot/api": ^10.9.1
     "@types/lodash": ^4.14.161
-    bignumber.js: ^9.0.0
+    bignumber.js: ^9.1.2
     lodash: ^4.17.20
   peerDependencies:
     "@acala-network/types": ^6
@@ -5200,6 +5200,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"bignumber.js@npm:^9.1.2":
+  version: 9.1.2
+  resolution: "bignumber.js@npm:9.1.2"
+  checksum: 582c03af77ec9cb0ebd682a373ee6c66475db94a4325f92299621d544aa4bd45cb45fd60001610e94aef8ae98a0905fa538241d9638d4422d57abbeeac6fadaf
+  languageName: node
+  linkType: hard
+
 "binary-extensions@npm:^2.0.0":
   version: 2.2.0
   resolution: "binary-extensions@npm:2.2.0"