diff --git a/package.json b/package.json
index 58658d537..7efbc3022 100644
--- a/package.json
+++ b/package.json
@@ -54,7 +54,7 @@
 		"web3": "1.7.4"
 	},
 	"dependencies": {
-		"@devprotocol/i-s-tokens": "2.0.1",
+		"@devprotocol/i-s-tokens": "2.1.1",
 		"@openzeppelin/contracts": "2.5.1"
 	},
 	"directories": {
diff --git a/yarn.lock b/yarn.lock
index 2b279c000..17e385cb4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -142,10 +142,10 @@
   dependencies:
     "@jridgewell/trace-mapping" "0.3.9"
 
-"@devprotocol/i-s-tokens@2.0.1":
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/@devprotocol/i-s-tokens/-/i-s-tokens-2.0.1.tgz#3e28db131ef0cee9abd1a9ea685ac12268d50008"
-  integrity sha512-QXSeiydzKe2D3RdXgR9ViA/ymEQedQbiAX9vLR+XrUjwB8TtJXp4ssJr/AChgd+Kw6Kz4uva/E44TIR+FGDgvA==
+"@devprotocol/i-s-tokens@2.1.1":
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/@devprotocol/i-s-tokens/-/i-s-tokens-2.1.1.tgz#df3f87e78d121de948ff8cc98508f963bd48c8c1"
+  integrity sha512-PwPBcWzfjsv3MS0I1iAhRXmVwknKpnzi90a4pTfFRi+0e5P9wR/+AiOGOAeX8U7+PWux0qrNEflrUJqNt38Biw==
 
 "@devprotocol/util-ts@2.2.1":
   version "2.2.1"