diff --git a/contracts/sales/Seller.sol b/contracts/sales/Seller.sol
index 941ef98..f1a1aac 100644
--- a/contracts/sales/Seller.sol
+++ b/contracts/sales/Seller.sol
@@ -212,7 +212,7 @@ abstract contract Seller is OwnerPausable, ReentrancyGuard {
 
         uint256 maxAvailable;
         uint256 sold;
-        
+
         if (config.reserveFreeQuota) {
             maxAvailable = config.totalInventory - config.freeQuota;
             sold = _totalSold.current() - purchasedFreeOfCharge.current();
diff --git a/package-lock.json b/package-lock.json
index f9b61ed..d356843 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,8 +1,181 @@
 {
   "name": "@divergencetech/ethier",
-  "version": "0.8.2",
-  "lockfileVersion": 1,
+  "version": "0.10.0",
+  "lockfileVersion": 2,
   "requires": true,
+  "packages": {
+    "": {
+      "name": "@divergencetech/ethier",
+      "version": "0.10.0",
+      "license": "MIT",
+      "dependencies": {
+        "@openzeppelin/contracts": "^4.4.0"
+      },
+      "devDependencies": {
+        "prettier": "^2.5.1",
+        "prettier-plugin-solidity": "^1.0.0-beta.19"
+      }
+    },
+    "node_modules/@openzeppelin/contracts": {
+      "version": "4.4.0",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.4.0.tgz",
+      "integrity": "sha512-dlKiZmDvJnGRLHojrDoFZJmsQVeltVeoiRN7RK+cf2FmkhASDEblE0RiaYdxPNsUZa6mRG8393b9bfyp+V5IAw=="
+    },
+    "node_modules/@solidity-parser/parser": {
+      "version": "0.14.0",
+      "resolved": "https://registry.npmjs.org/@solidity-parser/parser/-/parser-0.14.0.tgz",
+      "integrity": "sha512-cX0JJRcmPtNUJpzD2K7FdA7qQsTOk1UZnFx2k7qAg9ZRvuaH5NBe5IEdBMXGlmf2+FmjhqbygJ26H8l2SV7aKQ==",
+      "dev": true,
+      "dependencies": {
+        "antlr4ts": "^0.5.0-alpha.4"
+      }
+    },
+    "node_modules/ansi-regex": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
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+      "dev": true,
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/antlr4ts": {
+      "version": "0.5.0-alpha.4",
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+      "dev": true
+    },
+    "node_modules/emoji-regex": {
+      "version": "10.0.0",
+      "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-10.0.0.tgz",
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+      "dev": true
+    },
+    "node_modules/escape-string-regexp": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-4.0.0.tgz",
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+      "dev": true,
+      "engines": {
+        "node": ">=10"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/is-fullwidth-code-point": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-3.0.0.tgz",
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+      "dev": true,
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/lru-cache": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-6.0.0.tgz",
+      "integrity": "sha512-Jo6dJ04CmSjuznwJSS3pUeWmd/H0ffTlkXXgwZi+eq1UCmqQwCh+eLsYOYCwY991i2Fah4h1BEMCx4qThGbsiA==",
+      "dev": true,
+      "dependencies": {
+        "yallist": "^4.0.0"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
+    "node_modules/prettier": {
+      "version": "2.5.1",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.5.1.tgz",
+      "integrity": "sha512-vBZcPRUR5MZJwoyi3ZoyQlc1rXeEck8KgeC9AwwOn+exuxLxq5toTRDTSaVrXHxelDMHy9zlicw8u66yxoSUFg==",
+      "dev": true,
+      "bin": {
+        "prettier": "bin-prettier.js"
+      },
+      "engines": {
+        "node": ">=10.13.0"
+      }
+    },
+    "node_modules/prettier-plugin-solidity": {
+      "version": "1.0.0-beta.19",
+      "resolved": "https://registry.npmjs.org/prettier-plugin-solidity/-/prettier-plugin-solidity-1.0.0-beta.19.tgz",
+      "integrity": "sha512-xxRQ5ZiiZyUoMFLE9h7HnUDXI/daf1tnmL1msEdcKmyh7ZGQ4YklkYLC71bfBpYU2WruTb5/SFLUaEb3RApg5g==",
+      "dev": true,
+      "dependencies": {
+        "@solidity-parser/parser": "^0.14.0",
+        "emoji-regex": "^10.0.0",
+        "escape-string-regexp": "^4.0.0",
+        "semver": "^7.3.5",
+        "solidity-comments-extractor": "^0.0.7",
+        "string-width": "^4.2.3"
+      },
+      "engines": {
+        "node": ">=12"
+      },
+      "peerDependencies": {
+        "prettier": "^2.3.0"
+      }
+    },
+    "node_modules/semver": {
+      "version": "7.3.5",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-7.3.5.tgz",
+      "integrity": "sha512-PoeGJYh8HK4BTO/a9Tf6ZG3veo/A7ZVsYrSA6J8ny9nb3B1VrpkuN+z9OE5wfE5p6H4LchYZsegiQgbJD94ZFQ==",
+      "dev": true,
+      "dependencies": {
+        "lru-cache": "^6.0.0"
+      },
+      "bin": {
+        "semver": "bin/semver.js"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
+    "node_modules/solidity-comments-extractor": {
+      "version": "0.0.7",
+      "resolved": "https://registry.npmjs.org/solidity-comments-extractor/-/solidity-comments-extractor-0.0.7.tgz",
+      "integrity": "sha512-wciNMLg/Irp8OKGrh3S2tfvZiZ0NEyILfcRCXCD4mp7SgK/i9gzLfhY2hY7VMCQJ3kH9UB9BzNdibIVMchzyYw==",
+      "dev": true
+    },
+    "node_modules/string-width": {
+      "version": "4.2.3",
+      "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
+      "integrity": "sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==",
+      "dev": true,
+      "dependencies": {
+        "emoji-regex": "^8.0.0",
+        "is-fullwidth-code-point": "^3.0.0",
+        "strip-ansi": "^6.0.1"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/string-width/node_modules/emoji-regex": {
+      "version": "8.0.0",
+      "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",
+      "integrity": "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==",
+      "dev": true
+    },
+    "node_modules/strip-ansi": {
+      "version": "6.0.1",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
+      "integrity": "sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==",
+      "dev": true,
+      "dependencies": {
+        "ansi-regex": "^5.0.1"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/yallist": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
+      "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==",
+      "dev": true
+    }
+  },
   "dependencies": {
     "@openzeppelin/contracts": {
       "version": "4.4.0",
diff --git a/package.json b/package.json
index 7238d98..e2aab6d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@divergencetech/ethier",
-  "version": "0.9.0",
+  "version": "0.10.0",
   "description": "Golang and Solidity SDK to make Ethereum development ethier",
   "main": "\"\"",
   "scripts": {