diff --git a/R/stream.R b/R/stream.R
index e52610f..ff82131 100644
--- a/R/stream.R
+++ b/R/stream.R
@@ -2,11 +2,11 @@
 #'
 #' The `stream_in` and `stream_out` functions implement line-by-line processing
 #' of JSON data over a [connection], such as a socket, url, file or pipe. JSON
-#' streaming requires the [ndjson](http://ndjson.org) format, which slightly differs
+#' streaming requires the [ndjson](https://ndjson.org) format, which slightly differs
 #' from [fromJSON()] and [toJSON()], see details.
 #'
 #' Because parsing huge JSON strings is difficult and inefficient, JSON streaming is done
-#' using **lines of minified JSON records**, a.k.a. [ndjson](http://ndjson.org).
+#' using **lines of minified JSON records**, a.k.a. [ndjson](https://ndjson.org).
 #' This is pretty standard: JSON databases such as MongoDB use the same format to
 #' import/export datasets. Note that this means that the
 #' total stream combined is not valid JSON itself; only the individual lines are. Also note
diff --git a/man/stream_in.Rd b/man/stream_in.Rd
index 0ef6b79..cd4cdd6 100644
--- a/man/stream_in.Rd
+++ b/man/stream_in.Rd
@@ -38,12 +38,12 @@ When a custom handler function is specified, \code{stream_in} always returns \co
 \description{
 The \code{stream_in} and \code{stream_out} functions implement line-by-line processing
 of JSON data over a \link{connection}, such as a socket, url, file or pipe. JSON
-streaming requires the \href{http://ndjson.org}{ndjson} format, which slightly differs
+streaming requires the \href{https://ndjson.org}{ndjson} format, which slightly differs
 from \code{\link[=fromJSON]{fromJSON()}} and \code{\link[=toJSON]{toJSON()}}, see details.
 }
 \details{
 Because parsing huge JSON strings is difficult and inefficient, JSON streaming is done
-using \strong{lines of minified JSON records}, a.k.a. \href{http://ndjson.org}{ndjson}.
+using \strong{lines of minified JSON records}, a.k.a. \href{https://ndjson.org}{ndjson}.
 This is pretty standard: JSON databases such as MongoDB use the same format to
 import/export datasets. Note that this means that the
 total stream combined is not valid JSON itself; only the individual lines are. Also note