diff --git a/js/libs/keycloak-js/rollup.config.ts b/js/libs/keycloak-js/rollup.config.ts
index 894a2960284..ec51f83d89d 100644
--- a/js/libs/keycloak-js/rollup.config.ts
+++ b/js/libs/keycloak-js/rollup.config.ts
@@ -39,7 +39,7 @@ function defineOptions({
           file: path.join(targetDir, `${file}.mjs`),
         },
       ],
-      external: ["base64-js", "js-sha256"],
+      external: ["base64-js", "js-sha256", "jwt-decode"],
     },
     // Legacy Universal Module Definition, or “UMD”, with inlined dependencies.
     {