diff --git a/examples/util.ts b/examples/util.ts
index 5fa30e5c..bc82f651 100644
--- a/examples/util.ts
+++ b/examples/util.ts
@@ -7,6 +7,7 @@
  */ /** */
 
 import { TRANSACTION_VERSION } from '@polkadot/types/extrinsic/v4/Extrinsic';
+import fetch from 'node-fetch';
 
 import { KeyringPair, OptionsWithMeta } from '../src';
 import { createMetadata } from '../src/util';
diff --git a/package.json b/package.json
index 3dd61633..1be2a0af 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "test": "jest"
   },
   "dependencies": {
-    "@polkadot/api": "^1.31.2",
+    "@polkadot/api": "^1.34.1",
     "@types/memoizee": "^0.4.3",
     "acorn": ">=7.4.0"
   },
diff --git a/yarn.lock b/yarn.lock
index 56e3d6e8..a2d28bb8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -507,7 +507,7 @@
     memoizee "^0.4.14"
     rxjs "^6.6.3"
 
-"@polkadot/api@1.34.1", "@polkadot/api@^1.31.2":
+"@polkadot/api@1.34.1", "@polkadot/api@^1.34.1":
   version "1.34.1"
   resolved "https://registry.yarnpkg.com/@polkadot/api/-/api-1.34.1.tgz#c222ac743a427e36dda20a72d95a3a7d83cea094"
   integrity sha512-3gCibNRchH+XbEdULS1bwiV1RgarZW1PDw1Y1mAQBVqPrUpkYqntp1D52SQOpAbRzldkwk296Sj+mx9/IeDRXA==