diff --git a/packages/tendermint-rpc/src/adaptor.ts b/packages/tendermint-rpc/src/adaptor.ts
index 8638ed61..4f188d7c 100644
--- a/packages/tendermint-rpc/src/adaptor.ts
+++ b/packages/tendermint-rpc/src/adaptor.ts
@@ -1,4 +1,4 @@
-import { JsonRpcRequest, JsonRpcSuccessResponse } from "@iov/jsonrpc";
+import { JsonRpcRequest, JsonRpcSuccessResponse } from "@cosmjs/json-rpc";
 
 import * as requests from "./requests";
 import * as responses from "./responses";
diff --git a/packages/tendermint-rpc/src/jsonrpc.ts b/packages/tendermint-rpc/src/jsonrpc.ts
index 0b944bd3..6d9ed313 100644
--- a/packages/tendermint-rpc/src/jsonrpc.ts
+++ b/packages/tendermint-rpc/src/jsonrpc.ts
@@ -1,4 +1,4 @@
-import { JsonRpcRequest } from "@iov/jsonrpc";
+import { JsonRpcRequest } from "@cosmjs/json-rpc";
 
 const numbers = "0123456789";
 
diff --git a/packages/tendermint-rpc/src/rpcclients/httpclient.ts b/packages/tendermint-rpc/src/rpcclients/httpclient.ts
index e909fc22..42950660 100644
--- a/packages/tendermint-rpc/src/rpcclients/httpclient.ts
+++ b/packages/tendermint-rpc/src/rpcclients/httpclient.ts
@@ -3,7 +3,7 @@ import {
   JsonRpcRequest,
   JsonRpcSuccessResponse,
   parseJsonRpcResponse,
-} from "@iov/jsonrpc";
+} from "@cosmjs/json-rpc";
 import axios from "axios";
 
 import { hasProtocol, RpcClient } from "./rpcclient";
diff --git a/packages/tendermint-rpc/src/rpcclients/rpcclient.ts b/packages/tendermint-rpc/src/rpcclients/rpcclient.ts
index 8783026b..0e358422 100644
--- a/packages/tendermint-rpc/src/rpcclients/rpcclient.ts
+++ b/packages/tendermint-rpc/src/rpcclients/rpcclient.ts
@@ -1,4 +1,4 @@
-import { JsonRpcRequest, JsonRpcSuccessResponse } from "@iov/jsonrpc";
+import { JsonRpcRequest, JsonRpcSuccessResponse } from "@cosmjs/json-rpc";
 import { Stream } from "xstream";
 
 /**
diff --git a/packages/tendermint-rpc/src/rpcclients/websocketclient.ts b/packages/tendermint-rpc/src/rpcclients/websocketclient.ts
index 9d84f817..5b12912d 100644
--- a/packages/tendermint-rpc/src/rpcclients/websocketclient.ts
+++ b/packages/tendermint-rpc/src/rpcclients/websocketclient.ts
@@ -5,7 +5,7 @@ import {
   JsonRpcResponse,
   JsonRpcSuccessResponse,
   parseJsonRpcResponse,
-} from "@iov/jsonrpc";
+} from "@cosmjs/json-rpc";
 import { ConnectionStatus, ReconnectingSocket, SocketWrapperMessageEvent } from "@iov/socket";
 import { firstEvent } from "@iov/stream";
 import { Listener, Producer, Stream, Subscription } from "xstream";
diff --git a/packages/tendermint-rpc/src/v0-33/requests.ts b/packages/tendermint-rpc/src/v0-33/requests.ts
index 7526fe0a..3aa8333b 100644
--- a/packages/tendermint-rpc/src/v0-33/requests.ts
+++ b/packages/tendermint-rpc/src/v0-33/requests.ts
@@ -1,5 +1,5 @@
 import { toHex } from "@cosmjs/encoding";
-import { JsonRpcRequest } from "@iov/jsonrpc";
+import { JsonRpcRequest } from "@cosmjs/json-rpc";
 
 import { assertNotEmpty, Base64, Base64String, HexString, Integer, IntegerString, may } from "../encodings";
 import { createJsonRpcRequest } from "../jsonrpc";
diff --git a/packages/tendermint-rpc/src/v0-33/responses.ts b/packages/tendermint-rpc/src/v0-33/responses.ts
index 90b2bed4..9190c01d 100644
--- a/packages/tendermint-rpc/src/v0-33/responses.ts
+++ b/packages/tendermint-rpc/src/v0-33/responses.ts
@@ -1,5 +1,5 @@
 import { fromHex } from "@cosmjs/encoding";
-import { JsonRpcSuccessResponse } from "@iov/jsonrpc";
+import { JsonRpcSuccessResponse } from "@cosmjs/json-rpc";
 
 import {
   assertArray,
diff --git a/packages/tendermint-rpc/types/adaptor.d.ts b/packages/tendermint-rpc/types/adaptor.d.ts
index 94fb1971..9dde507b 100644
--- a/packages/tendermint-rpc/types/adaptor.d.ts
+++ b/packages/tendermint-rpc/types/adaptor.d.ts
@@ -1,4 +1,4 @@
-import { JsonRpcRequest, JsonRpcSuccessResponse } from "@iov/jsonrpc";
+import { JsonRpcRequest, JsonRpcSuccessResponse } from "@cosmjs/json-rpc";
 import * as requests from "./requests";
 import * as responses from "./responses";
 import { SubscriptionEvent } from "./rpcclients";
diff --git a/packages/tendermint-rpc/types/jsonrpc.d.ts b/packages/tendermint-rpc/types/jsonrpc.d.ts
index c420a2f2..0d3b7802 100644
--- a/packages/tendermint-rpc/types/jsonrpc.d.ts
+++ b/packages/tendermint-rpc/types/jsonrpc.d.ts
@@ -1,3 +1,3 @@
-import { JsonRpcRequest } from "@iov/jsonrpc";
+import { JsonRpcRequest } from "@cosmjs/json-rpc";
 /** Creates a JSON-RPC request with random ID */
 export declare function createJsonRpcRequest(method: string, params?: {}): JsonRpcRequest;
diff --git a/packages/tendermint-rpc/types/rpcclients/httpclient.d.ts b/packages/tendermint-rpc/types/rpcclients/httpclient.d.ts
index 09ee652b..8b50c1d3 100644
--- a/packages/tendermint-rpc/types/rpcclients/httpclient.d.ts
+++ b/packages/tendermint-rpc/types/rpcclients/httpclient.d.ts
@@ -1,4 +1,4 @@
-import { JsonRpcRequest, JsonRpcSuccessResponse } from "@iov/jsonrpc";
+import { JsonRpcRequest, JsonRpcSuccessResponse } from "@cosmjs/json-rpc";
 import { RpcClient } from "./rpcclient";
 export declare class HttpClient implements RpcClient {
   protected readonly url: string;
diff --git a/packages/tendermint-rpc/types/rpcclients/rpcclient.d.ts b/packages/tendermint-rpc/types/rpcclients/rpcclient.d.ts
index 8ef11353..9089d78f 100644
--- a/packages/tendermint-rpc/types/rpcclients/rpcclient.d.ts
+++ b/packages/tendermint-rpc/types/rpcclients/rpcclient.d.ts
@@ -1,4 +1,4 @@
-import { JsonRpcRequest, JsonRpcSuccessResponse } from "@iov/jsonrpc";
+import { JsonRpcRequest, JsonRpcSuccessResponse } from "@cosmjs/json-rpc";
 import { Stream } from "xstream";
 /**
  * An event emitted from Tendermint after subscribing via RPC.
diff --git a/packages/tendermint-rpc/types/rpcclients/websocketclient.d.ts b/packages/tendermint-rpc/types/rpcclients/websocketclient.d.ts
index 4caae6a0..36db855a 100644
--- a/packages/tendermint-rpc/types/rpcclients/websocketclient.d.ts
+++ b/packages/tendermint-rpc/types/rpcclients/websocketclient.d.ts
@@ -1,4 +1,4 @@
-import { JsonRpcId, JsonRpcRequest, JsonRpcResponse, JsonRpcSuccessResponse } from "@iov/jsonrpc";
+import { JsonRpcId, JsonRpcRequest, JsonRpcResponse, JsonRpcSuccessResponse } from "@cosmjs/json-rpc";
 import { Stream } from "xstream";
 import { RpcStreamingClient, SubscriptionEvent } from "./rpcclient";
 export declare class WebsocketClient implements RpcStreamingClient {
diff --git a/packages/tendermint-rpc/types/v0-33/requests.d.ts b/packages/tendermint-rpc/types/v0-33/requests.d.ts
index af972c4a..bdfaa960 100644
--- a/packages/tendermint-rpc/types/v0-33/requests.d.ts
+++ b/packages/tendermint-rpc/types/v0-33/requests.d.ts
@@ -1,4 +1,4 @@
-import { JsonRpcRequest } from "@iov/jsonrpc";
+import { JsonRpcRequest } from "@cosmjs/json-rpc";
 import * as requests from "../requests";
 export declare class Params {
   static encodeAbciInfo(req: requests.AbciInfoRequest): JsonRpcRequest;
diff --git a/packages/tendermint-rpc/types/v0-33/responses.d.ts b/packages/tendermint-rpc/types/v0-33/responses.d.ts
index 05fad338..454efc04 100644
--- a/packages/tendermint-rpc/types/v0-33/responses.d.ts
+++ b/packages/tendermint-rpc/types/v0-33/responses.d.ts
@@ -1,4 +1,4 @@
-import { JsonRpcSuccessResponse } from "@iov/jsonrpc";
+import { JsonRpcSuccessResponse } from "@cosmjs/json-rpc";
 import * as responses from "../responses";
 import { SubscriptionEvent } from "../rpcclients";
 export declare class Responses {