diff --git a/sdk/js/package.json b/sdk/js/package.json
index daac9b95..fa010d92 100644
--- a/sdk/js/package.json
+++ b/sdk/js/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@pythnetwork/express-relay-js",
-  "version": "0.16.1",
+  "version": "0.17.0",
   "description": "Utilities for interacting with the express relay protocol",
   "homepage": "https://github.com/pyth-network/per/tree/main/sdk/js",
   "author": "Douro Labs",
diff --git a/sdk/js/src/index.ts b/sdk/js/src/index.ts
index d494a213..9950823c 100644
--- a/sdk/js/src/index.ts
+++ b/sdk/js/src/index.ts
@@ -434,7 +434,7 @@ export class Client {
     });
     if (response.error) {
       throw ClientError.newHttpError(
-        response.error.error,
+        JSON.stringify(response.error),
         response.response.status
       );
     }
@@ -467,7 +467,7 @@ export class Client {
     });
     if (response.error) {
       throw ClientError.newHttpError(
-        response.error.error,
+        JSON.stringify(response.error),
         response.response.status
       );
     }
@@ -503,7 +503,7 @@ export class Client {
       });
       if (response.error) {
         throw ClientError.newHttpError(
-          response.error.error,
+          JSON.stringify(response.error),
           response.response.status
         );
       } else if (response.data === undefined) {
@@ -526,7 +526,7 @@ export class Client {
     });
     if (response.error) {
       throw ClientError.newHttpError(
-        response.error.error,
+        JSON.stringify(response.error),
         response.response.status
       );
     } else if (response.data === undefined) {