diff --git a/lib/sdk/oauth2-flows/AuthCodeAbstract.ts b/lib/sdk/oauth2-flows/AuthCodeAbstract.ts
index 1f6758b..8359f6b 100644
--- a/lib/sdk/oauth2-flows/AuthCodeAbstract.ts
+++ b/lib/sdk/oauth2-flows/AuthCodeAbstract.ts
@@ -247,10 +247,6 @@ export abstract class AuthCodeAbstract {
       scope: this.config.scope ?? AuthCodeAbstract.DEFAULT_TOKEN_SCOPES,
     };
 
-    if (this.config.audience) {
-      searchParamsObject.audience = this.config.audience;
-    }
-
     if (options.start_page) {
       searchParamsObject.start_page = options.start_page;
     }
@@ -275,6 +271,15 @@ export abstract class AuthCodeAbstract {
     for (const key in searchParamsObject)
       searchParams.append(key, searchParamsObject[key]);
 
+    if (this.config.audience) {
+      const audienceArray = Array.isArray(this.config.audience) ? this.config.audience : [this.config.audience];
+
+      audienceArray
+        .forEach((aud) => {
+          searchParams.append('audience', aud);
+        });
+    }
+
     return searchParams;
   }
 }
diff --git a/lib/sdk/oauth2-flows/ClientCredentials.ts b/lib/sdk/oauth2-flows/ClientCredentials.ts
index 44f2f2d..7368f40 100644
--- a/lib/sdk/oauth2-flows/ClientCredentials.ts
+++ b/lib/sdk/oauth2-flows/ClientCredentials.ts
@@ -115,7 +115,12 @@ export class ClientCredentials {
     });
 
     if (this.config.audience) {
-      searchParams.append('audience', this.config.audience);
+      const audienceArray = Array.isArray(this.config.audience) ? this.config.audience : [this.config.audience];
+
+      audienceArray
+        .forEach((aud) => {
+          searchParams.append('audience', aud);
+        });
     }
 
     return new URLSearchParams(searchParams);
diff --git a/lib/sdk/oauth2-flows/types.ts b/lib/sdk/oauth2-flows/types.ts
index aec039f..4e77b04 100644
--- a/lib/sdk/oauth2-flows/types.ts
+++ b/lib/sdk/oauth2-flows/types.ts
@@ -32,7 +32,7 @@ export interface OAuth2FlowOptions {
   clientId: string;
   logoutRedirectURL: string;
   authDomain: string;
-  audience?: string;
+  audience?: string | string[];
   scope?: string;
 }