diff --git a/package.json b/package.json
index 4c7c544..f624ea4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "react-native-wagmi-charts",
-  "version": "2.2.0",
+  "version": "2.3.0",
   "description": "A sweet candlestick chart for React Native",
   "main": "lib/commonjs/index.js",
   "module": "lib/module/index.js",
@@ -45,6 +45,8 @@
   "devDependencies": {
     "@commitlint/config-conventional": "^12.0.4",
     "@react-native-community/eslint-config": "^3.0.0",
+    "@types/d3-array": "^3.0.4",
+    "@types/d3-scale": "^4.0.3",
     "@types/jest": "^26.0.24",
     "@types/react": "^17.0.14",
     "@types/react-native": "^0.64.12",
@@ -60,8 +62,8 @@
     "react-native": "0.63.4",
     "react-native-builder-bob": "^0.18.1",
     "react-native-gesture-handler": "^2.1.0",
-    "react-native-svg": "^12.1.1",
     "react-native-reanimated": "~2.3.1",
+    "react-native-svg": "^12.1.1",
     "typescript": "^4.3.5"
   },
   "peerDependencies": {
diff --git a/src/charts/line/utils/getArea.ts b/src/charts/line/utils/getArea.ts
index d3658e9..61d8ca6 100644
--- a/src/charts/line/utils/getArea.ts
+++ b/src/charts/line/utils/getArea.ts
@@ -31,7 +31,7 @@ export function getArea({
   const area = shape
     .area()
     .x((_: unknown, i: number) => scaleX(i))
-    .y0((d: { value: unknown }) => scaleY(d.value))
+    .y0((d: { value: unknown }) => scaleY(d.value as number))
     .y1(() => height)
     .curve(_shape)(data);
   return area;
diff --git a/yarn.lock b/yarn.lock
index 237398d..99c23a4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2165,6 +2165,23 @@
   dependencies:
     "@babel/types" "^7.3.0"
 
+"@types/d3-array@^3.0.4":
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/@types/d3-array/-/d3-array-3.0.4.tgz#44eebe40be57476cad6a0cd6a85b0f57d54185a2"
+  integrity sha512-nwvEkG9vYOc0Ic7G7kwgviY4AQlTfYGIZ0fqB7CQHXGyYM6nO7kJh5EguSNA3jfh4rq7Sb7eMVq8isuvg2/miQ==
+
+"@types/d3-scale@^4.0.3":
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/@types/d3-scale/-/d3-scale-4.0.3.tgz#7a5780e934e52b6f63ad9c24b105e33dd58102b5"
+  integrity sha512-PATBiMCpvHJSMtZAMEhc2WyL+hnzarKzI6wAHYjhsonjWJYGq5BXTzQjv4l8m2jO183/4wZ90rKvSeT7o72xNQ==
+  dependencies:
+    "@types/d3-time" "*"
+
+"@types/d3-time@*":
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/@types/d3-time/-/d3-time-3.0.0.tgz#e1ac0f3e9e195135361fa1a1d62f795d87e6e819"
+  integrity sha512-sZLCdHvBUcNby1cB6Fd3ZBrABbjz3v1Vm90nysCQ6Vt7vd6e/h9Lt7SiJUoEX0l4Dzc7P5llKyhqSi1ycSf1Hg==
+
 "@types/graceful-fs@^4.1.2":
   version "4.1.5"
   resolved "https://registry.yarnpkg.com/@types/graceful-fs/-/graceful-fs-4.1.5.tgz#21ffba0d98da4350db64891f92a9e5db3cdb4e15"