diff --git a/src/common/InputHandler.ts b/src/common/InputHandler.ts
index 2e57278e..17baef11 100644
--- a/src/common/InputHandler.ts
+++ b/src/common/InputHandler.ts
@@ -2672,10 +2672,10 @@ export class InputHandler extends Disposable implements IInputHandler {
       } else if (p === 55) {
         // not overline
         attr.bg &= ~BgFlags.OVERLINE;
-      } else if (p === 221) {
+      } else if (p === 221 && (this._optionsService.rawOptions.vtExtensions?.kittySgrBoldFaintControl ?? true)) {
         // not bold (kitty extension)
         attr.fg &= ~FgFlags.BOLD;
-      } else if (p === 222) {
+      } else if (p === 222 && (this._optionsService.rawOptions.vtExtensions?.kittySgrBoldFaintControl ?? true)) {
         // not faint (kitty extension)
         attr.bg &= ~BgFlags.DIM;
       } else if (p === 59) {
diff --git a/src/common/services/Services.ts b/src/common/services/Services.ts
index c3f69fb4..70d145e0 100644
--- a/src/common/services/Services.ts
+++ b/src/common/services/Services.ts
@@ -310,6 +310,7 @@ export interface ITerminalQuirks {
 
 export interface IVtExtensions {
   kittyKeyboard?: boolean;
+  kittySgrBoldFaintControl?: boolean;
 }
 
 export const IOscLinkService = createDecorator<IOscLinkService>('OscLinkService');
diff --git a/typings/xterm-headless.d.ts b/typings/xterm-headless.d.ts
index f4a4f991..9094b09d 100644
--- a/typings/xterm-headless.d.ts
+++ b/typings/xterm-headless.d.ts
@@ -331,6 +331,15 @@ declare module '@xterm/headless' {
      * [0]: https://sw.kovidgoyal.net/kitty/keyboard-protocol/
      */
     kittyKeyboard?: boolean;
+
+    /**
+     * Whether [SGR 221 (not bold) and SGR 222 (not faint) are enabled][0].
+     * These are kitty extensions that allow resetting bold and faint
+     * independently. The default is true.
+     * 
+     * [0]: https://sw.kovidgoyal.net/kitty/misc-protocol/
+     */
+    kittySgrBoldFaintControl?: boolean;
   }
 
   /**
diff --git a/typings/xterm.d.ts b/typings/xterm.d.ts
index 8001c25e..21239981 100644
--- a/typings/xterm.d.ts
+++ b/typings/xterm.d.ts
@@ -448,6 +448,15 @@ declare module '@xterm/xterm' {
      * [0]: https://sw.kovidgoyal.net/kitty/keyboard-protocol/
      */
     kittyKeyboard?: boolean;
+
+    /**
+     * Whether [SGR 221 (not bold) and SGR 222 (not faint) are enabled][0].
+     * These are kitty extensions that allow resetting bold and faint
+     * independently. The default is true.
+     * 
+     * [0]: https://sw.kovidgoyal.net/kitty/misc-protocol/
+     */
+    kittySgrBoldFaintControl?: boolean;
   }
 
   /**