diff --git a/src/auth/oauth.ts b/src/auth/oauth.ts
index 4815cec7d..f46198ee8 100644
--- a/src/auth/oauth.ts
+++ b/src/auth/oauth.ts
@@ -141,6 +141,11 @@ export interface PushedAuthorizationRequest extends ClientCredentials {
    * The id of an invitation to accept.
    */
   invitation?: string;
+  
+  /**
+   * A Base64-encoded SHA-256 hash of the {@link AuthorizationCodeGrantWithPKCERequest.code_verifier} used for the Authorization Code Flow with PKCE.
+   */
+  code_challenge?: string;
 
   /**
    * Allow for any custom property to be sent to Auth0