diff --git a/package.json b/package.json
index b0e046e..8376400 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "valory-adaptor-alb",
-	"version": "2.0.0-beta.5",
+	"version": "2.0.0-beta.6",
 	"main": "dist/albAdaptor.js",
 	"typings": "dist/albAdaptor.d.ts",
 	"license": "MIT",
diff --git a/src/albAdaptor.ts b/src/albAdaptor.ts
index b1a069c..038514a 100644
--- a/src/albAdaptor.ts
+++ b/src/albAdaptor.ts
@@ -28,7 +28,7 @@ export class ALBAdaptor implements ApiAdaptor {
 
 	public register(path: string, method: HttpMethod, handler: (ctx: ApiContext) => Promise<ApiContext>) {
 		this.router.on(method, path.replace(pathReplacer, ":$1"), async (request, callback, params) => {
-			const content = (request.isBase64Encoded) ? Buffer.from("base64").toString() : request.body;
+			const content = (request.isBase64Encoded) ? Buffer.from(request.body, "base64").toString() : request.body;
 			const tranRequest = new ApiContext({
 				headers: request.headers,
 				pathParams: params,