diff --git a/src/generation/ClassesGenerator.ts b/src/generation/ClassesGenerator.ts
index ed7771c4..01255e1c 100644
--- a/src/generation/ClassesGenerator.ts
+++ b/src/generation/ClassesGenerator.ts
@@ -146,6 +146,7 @@ export class ClassesGenerator implements IClassesGenerator {
       ...defaultTypography,
       fontFamily: Object.keys(this.configScanner.themeConfig.fontFamily).map(value => 'font-' + value),
       fontSize: Object.keys(this.configScanner.themeConfig.fontSize).map(size => 'font-' + size),
+      fontWeight: Object.keys(this.configScanner.themeConfig.fontWeight).map(weight => 'font-' + weight),
       textColor: this.getGeneratedClassesWithColors('text'),
     };
 
diff --git a/src/generation/_definitions.d.ts b/src/generation/_definitions.d.ts
index 536d5c9a..4e15a732 100644
--- a/src/generation/_definitions.d.ts
+++ b/src/generation/_definitions.d.ts
@@ -37,10 +37,10 @@ interface IThemeConfig extends IThemeProps {
 // TODO
 /* eslint-disable @typescript-eslint/no-explicit-any */
 interface IThemeProps {
-  screens?: {
+  screens: {
     [key: string]: string;
   };
-  colors?: {
+  colors: {
     [key: string]: string | { [key: string]: string };
   };
   spacing: {
@@ -65,16 +65,16 @@ interface IThemeProps {
   backgroundColor?: any;
   borderColor?: any;
   container?: any;
-  cursor?: {
+  cursor: {
     [key: string]: string;
   };
-  divideWidth?: {
+  divideWidth: {
     [key: string]: string;
   };
-  fill?: {
+  fill: {
     [key: string]: string;
   };
-  flex?: {
+  flex: {
     [key: string]: string;
   };
   flexGrow: {
@@ -89,37 +89,37 @@ interface IThemeProps {
   fontSize: {
     [key: string]: string;
   };
-  fontWeight?: {
+  fontWeight: {
     [key: string]: string;
   };
   height: any;
-  inset?: {
+  inset: {
     [key: string]: string;
   };
-  letterSpacing?: {
+  letterSpacing: {
     [key: string]: string;
   };
-  lineHeight?: {
+  lineHeight: {
     [key: string]: string;
   };
-  listStyleType?: {
+  listStyleType: {
     [key: string]: string;
   };
   margin: any;
-  maxHeight?: {
+  maxHeight: {
     [key: string]: string;
   };
   maxWidth: any;
-  minHeight?: {
+  minHeight: {
     [key: string]: string;
   };
-  minWidth?: {
+  minWidth: {
     [key: string]: string;
   };
-  objectPosition?: {
+  objectPosition: {
     [key: string]: string;
   };
-  opacity?: {
+  opacity: {
     [key: string]: string;
   };
   order: {
@@ -127,15 +127,15 @@ interface IThemeProps {
   };
   padding: any;
   placeholderColor: any;
-  stroke?: {
+  stroke: {
     [key: string]: string;
   };
-  strokeWidth?: {
+  strokeWidth: {
     [key: string]: string;
   };
   textColor: any;
   width: any;
-  zIndex?: {
+  zIndex: {
     [key: string]: string;
   };
   gap: any;
@@ -164,26 +164,26 @@ interface IThemeProps {
   gridRowEnd: {
     [key: string]: string;
   };
-  transformOrigin?: {
+  transformOrigin: {
     [key: string]: string;
   };
-  scale?: {
+  scale: {
     [key: string]: string;
   };
-  rotate?: {
+  rotate: {
     [key: string]: string;
   };
   translate: any;
-  skew?: {
+  skew: {
     [key: string]: string;
   };
-  transitionProperty?: {
+  transitionProperty: {
     [key: string]: string;
   };
-  transitionTimingFunction?: {
+  transitionTimingFunction: {
     [key: string]: string;
   };
-  transitionDuration?: {
+  transitionDuration: {
     [key: string]: string;
   };
 }