diff --git a/build/docker/bin/Makefile b/build/docker/bin/Makefile
index ebe713e4..c73045ce 100644
--- a/build/docker/bin/Makefile
+++ b/build/docker/bin/Makefile
@@ -38,3 +38,4 @@ prepare-sources:
 	mkdir -p $(BLOCKBOOK_BASE)
 	cp -r /src $(BLOCKBOOK_SRC)
 	cd $(BLOCKBOOK_SRC) && go mod download
+	sed -i 's/wsMessageSizeLimit\ =\ 15\ \*\ 1024\ \*\ 1024/wsMessageSizeLimit = 50 * 1024 * 1024/g' $(GOPATH)/pkg/mod/github.com/ethereum/go-ethereum*/rpc/websocket.go