diff --git a/internal/rpc/core/events.go b/internal/rpc/core/events.go
index 023d45a2d7..da8e6088ee 100644
--- a/internal/rpc/core/events.go
+++ b/internal/rpc/core/events.go
@@ -17,7 +17,7 @@ import (
 
 const (
 	// Buffer on the Tendermint (server) side to allow some slowness in clients.
-	subBufferSize = 100
+	subBufferSize = 500
 
 	// maxQueryLength is the maximum length of a query string that will be
 	// accepted. This is just a safety check to avoid outlandish queries.
diff --git a/rpc/jsonrpc/server/ws_handler.go b/rpc/jsonrpc/server/ws_handler.go
index bb897680e4..0f9ed2daba 100644
--- a/rpc/jsonrpc/server/ws_handler.go
+++ b/rpc/jsonrpc/server/ws_handler.go
@@ -17,7 +17,7 @@ import (
 // WebSocket handler
 
 const (
-	defaultWSWriteChanCapacity = 100
+	defaultWSWriteChanCapacity = 500
 	defaultWSWriteWait         = 10 * time.Second
 	defaultWSReadWait          = 30 * time.Second
 	defaultWSPingPeriod        = (defaultWSReadWait * 9) / 10