diff --git a/packages/sdk/src/tests/controllers/CharacterStyleController.test.ts b/packages/sdk/src/tests/controllers/CharacterStyleController.test.ts
index c8bd8611..aa3b8150 100644
--- a/packages/sdk/src/tests/controllers/CharacterStyleController.test.ts
+++ b/packages/sdk/src/tests/controllers/CharacterStyleController.test.ts
@@ -49,10 +49,10 @@ const updateCharacterStyle: CharacterStyleUpdate = {
         value: Scripting.NORMAL,
     },
     trackingLeft: {
-        value: '0 px',
+        value: 0,
     },
     trackingRight: {
-        value: '0 px',
+        value: 0,
     },
     textIndent: {
         value: '0 px',
diff --git a/packages/sdk/src/tests/controllers/ParagraphStyleController.test.ts b/packages/sdk/src/tests/controllers/ParagraphStyleController.test.ts
index 15ddf549..77b00a70 100644
--- a/packages/sdk/src/tests/controllers/ParagraphStyleController.test.ts
+++ b/packages/sdk/src/tests/controllers/ParagraphStyleController.test.ts
@@ -48,10 +48,10 @@ const updateParagraphStyle: ParagraphStyleUpdate = {
         value: Scripting.NORMAL,
     },
     trackingLeft: {
-        value: '0 px',
+        value: 0,
     },
     trackingRight: {
-        value: '0 px',
+        value: 0,
     },
     textIndent: {
         value: '0 px',
diff --git a/packages/sdk/src/types/CharacterStyleTypes.ts b/packages/sdk/src/types/CharacterStyleTypes.ts
index f2e27f8a..19d371bf 100644
--- a/packages/sdk/src/types/CharacterStyleTypes.ts
+++ b/packages/sdk/src/types/CharacterStyleTypes.ts
@@ -10,10 +10,11 @@ export type CharacterStyle = {
     typographicCase?: Case;
     kerningOn: boolean;
     subSuperScript?: Scripting;
+    trackingLeft?: number;
+    trackingRight?: number;
 
     // the following properties are unit properties
-    trackingLeft?: string;
-    trackingRight?: string;
+
     textIndent?: string;
     // end of unit properties
 
@@ -43,10 +44,10 @@ export type CharacterStyleUpdate = {
         value: Scripting;
     };
     trackingLeft: {
-        value: string;
+        value: number;
     };
     trackingRight: {
-        value: string;
+        value: number;
     };
     textIndent: {
         value: string;
diff --git a/packages/sdk/src/types/ParagraphStyleTypes.ts b/packages/sdk/src/types/ParagraphStyleTypes.ts
index a50711c9..945ef509 100644
--- a/packages/sdk/src/types/ParagraphStyleTypes.ts
+++ b/packages/sdk/src/types/ParagraphStyleTypes.ts
@@ -12,8 +12,8 @@ export type ParagraphStyle = {
     kerningOn: boolean;
     subSuperScript: Scripting;
     // the following properties are unit properties
-    trackingLeft: string;
-    trackingRight: string;
+    trackingLeft: number;
+    trackingRight: number;
     startIndent: string;
     endIndent: string;
     spaceBefore: string;
@@ -46,10 +46,10 @@ export type ParagraphStyleUpdate = {
         value: Scripting;
     };
     trackingLeft: {
-        value: string;
+        value: number;
     };
     trackingRight: {
-        value: string;
+        value: number;
     };
     textIndent: {
         value: string;
diff --git a/packages/sdk/src/types/TextStyleTypes.ts b/packages/sdk/src/types/TextStyleTypes.ts
index cc8c2e72..47c777a4 100644
--- a/packages/sdk/src/types/TextStyleTypes.ts
+++ b/packages/sdk/src/types/TextStyleTypes.ts
@@ -78,8 +78,8 @@ export interface SelectedTextStyle {
     typographicCase?: Case;
     kerningOn?: boolean;
     subSuperScript?: Scripting;
-    trackingLeft?: string;
-    trackingRight?: string;
+    trackingLeft?: number;
+    trackingRight?: number;
     paragraphIndentStart?: string;
     paragraphIndentEnd?: string;
     paragraphSpaceBefore?: string;