diff --git a/nekoton-transport/src/jrpc.rs b/nekoton-transport/src/jrpc.rs
index 5d089a445..ea3b853de 100644
--- a/nekoton-transport/src/jrpc.rs
+++ b/nekoton-transport/src/jrpc.rs
@@ -20,6 +20,7 @@ impl JrpcClient {
         );
 
         let client = reqwest::ClientBuilder::new()
+            .http2_prior_knowledge()
             .default_headers(headers)
             .build()
             .context("failed to build http client")?;