diff --git a/pgconn/config.go b/pgconn/config.go
index 13def1e80..eca2bcdb7 100644
--- a/pgconn/config.go
+++ b/pgconn/config.go
@@ -800,7 +800,7 @@ func parsePort(s string) (uint16, error) {
 }
 
 func makeDefaultDialer() *net.Dialer {
-	return &net.Dialer{KeepAlive: 5 * time.Minute}
+	return &net.Dialer{}
 }
 
 func makeDefaultResolver() *net.Resolver {