diff --git a/shovel-config-ts/jsr.json b/shovel-config-ts/jsr.json
index ee9a50a..4b57636 100644
--- a/shovel-config-ts/jsr.json
+++ b/shovel-config-ts/jsr.json
@@ -1,6 +1,6 @@
 {
   "name": "@indexsupply/shovel-config",
   "description": "Types and functions for building a Shovel config file.",
-  "version": "0.0.16",
+  "version": "0.0.17",
   "exports": "./src/index.ts"
 }
diff --git a/shovel-config-ts/package.json b/shovel-config-ts/package.json
index 119e7e0..be57305 100644
--- a/shovel-config-ts/package.json
+++ b/shovel-config-ts/package.json
@@ -3,7 +3,7 @@
   "publishConfig": {
     "access": "public"
   },
-  "version": "0.0.16",
+  "version": "0.0.17",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
   "description": "Types and functions for building a Shovel config file.",
diff --git a/shovel-config-ts/src/index.ts b/shovel-config-ts/src/index.ts
index e3b7539..f2b2b8c 100644
--- a/shovel-config-ts/src/index.ts
+++ b/shovel-config-ts/src/index.ts
@@ -120,9 +120,19 @@ export type Event = {
   readonly inputs: readonly EventInput[];
 };
 
+/**
+ * Source represents an Ethereum HTTP JSON RPC API Provider.
+ */
 export type Source = {
   name: string;
   url: string;
+  /**
+   * Shovel will round-robin requests to these urls.
+   * This may be helpful for reducing downtime.
+   *
+   * url is added to urls
+   */
+  urls: string[];
   chain_id: EnvRef | number;
   poll_duration?: EnvRef | string;
   concurrency?: EnvRef | number;