diff --git a/lib/neo4j/core/cypher_session/adaptors/bolt.rb b/lib/neo4j/core/cypher_session/adaptors/bolt.rb
index a0927f8b..ade058da 100644
--- a/lib/neo4j/core/cypher_session/adaptors/bolt.rb
+++ b/lib/neo4j/core/cypher_session/adaptors/bolt.rb
@@ -115,7 +115,7 @@ def secure_connection?
           end
 
           def open_socket
-            @tcp_client = Net::TCPClient.new(@net_tcp_client_options.merge(buffered: false, server: "#{host}:#{port}"))
+            @tcp_client = Net::TCPClient.new(**@net_tcp_client_options.merge(buffered: false, server: "#{host}:#{port}"))
           rescue Errno::ECONNREFUSED => e
             raise Neo4j::Core::CypherSession::ConnectionFailedError, e.message
           end