diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0e8ba2150..19fd8ca41 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,8 @@ project adheres to [Semantic Versioning](http://semver.org/).
 ==================
 ### Changed
 ### Added
+* fix TextMetrics type to include alphabeticBaseline, emHeightAscent, and emHeightDescent properties
+
 ### Fixed
 
 3.0.0
diff --git a/index.d.ts b/index.d.ts
index 73ad4cde9..49636f396 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -128,10 +128,13 @@ export class Canvas {
 }
 
 export interface TextMetrics {
+	readonly alphabeticBaseline: number;
 	readonly actualBoundingBoxAscent: number;
 	readonly actualBoundingBoxDescent: number;
 	readonly actualBoundingBoxLeft: number;
 	readonly actualBoundingBoxRight: number;
+	readonly emHeightAscent: number;
+	readonly emHeightDescent: number;
 	readonly fontBoundingBoxAscent: number;
 	readonly fontBoundingBoxDescent: number;
 	readonly width: number;