diff --git a/gsdk/src/client.rs b/gsdk/src/client.rs
index dfe5cd08204..72346d6415e 100644
--- a/gsdk/src/client.rs
+++ b/gsdk/src/client.rs
@@ -37,6 +37,7 @@ use subxt::{
 
 const DEFAULT_GEAR_ENDPOINT: &str = "wss://rpc-node.gear-tech.io:443";
 const DEFAULT_TIMEOUT: u64 = 60_000;
+const ONE_HUNDRED_MEGA_BYTES: u32 = 100 * 1024 * 1024;
 
 struct Params(Option<Box<RawValue>>);
 
@@ -63,6 +64,11 @@ impl RpcClient {
         if url.starts_with("ws") {
             Ok(Self::Ws(
                 WsClientBuilder::default()
+                    // Actually that stand for the response too.
+                    // *WARNING*:
+                    // After updating jsonrpsee to 0.20.0 and higher
+                    // use another method created only for that.
+                    .max_request_body_size(ONE_HUNDRED_MEGA_BYTES)
                     .connection_timeout(Duration::from_millis(timeout))
                     .request_timeout(Duration::from_millis(timeout))
                     .build(url)