diff --git a/Source/ZoomNet/Resources/IWebinars.cs b/Source/ZoomNet/Resources/IWebinars.cs
index 7d1d5282..e57d9214 100644
--- a/Source/ZoomNet/Resources/IWebinars.cs
+++ b/Source/ZoomNet/Resources/IWebinars.cs
@@ -76,6 +76,23 @@ public interface IWebinars
 		/// <exception cref="System.Exception">Thrown when an exception occured while creating the webinar.</exception>
 		Task<RecurringWebinar> CreateRecurringWebinarAsync(string userId, string topic, string agenda, DateTime? start, int duration, RecurrenceInfo recurrence, string password = null, WebinarSettings settings = null, IDictionary<string, string> trackingFields = null, CancellationToken cancellationToken = default);
 
+		/// <summary>
+		/// Updates an existing scheduled webinar.
+		/// </summary>
+		/// <param name="webinarId">The webinar ID.</param>
+		/// <param name="topic">Webinar topic.</param>
+		/// <param name="agenda">Webinar description.</param>
+		/// <param name="start">Webinar start time.</param>
+		/// <param name="duration">Webinar duration (minutes).</param>
+		/// <param name="password">Password to join the webinar. By default the password may only contain the following characters: [a-z A-Z 0-9 @ - _ *]. Max of 10 characters. This can be updated within Zoom account settings.</param>
+		/// <param name="settings">Webinar settings.</param>
+		/// <param name="trackingFields">Tracking fields.</param>
+		/// <param name="cancellationToken">The cancellation token.</param>
+		/// <returns>
+		/// The async task.
+		/// </returns>
+		Task UpdateScheduledWebinarAsync(long webinarId, string topic = null, string agenda = null, DateTime? start = null, int? duration = null, string password = null, WebinarSettings settings = null, IDictionary<string, string> trackingFields = null, CancellationToken cancellationToken = default);
+
 		/// <summary>
 		/// Retrieve the details of a webinar.
 		/// </summary>
@@ -87,6 +104,24 @@ public interface IWebinars
 		/// </returns>
 		Task<Webinar> GetAsync(long webinarId, string occurrenceId = null, CancellationToken cancellationToken = default);
 
+		/// <summary>
+		/// Updates an existing recurring webinar for a user.
+		/// </summary>
+		/// <param name="webinarId">The webinar ID.</param>
+		/// <param name="topic">Webinar topic.</param>
+		/// <param name="agenda">Webinar description.</param>
+		/// <param name="start">Webinar start time.</param>
+		/// <param name="duration">Webinar duration (minutes).</param>
+		/// <param name="recurrence">Recurrence information.</param>
+		/// <param name="password">Password to join the webinar. By default the password may only contain the following characters: [a-z A-Z 0-9 @ - _ *]. Max of 10 characters. This can be updated within Zoom account settings.</param>
+		/// <param name="settings">Webinar settings.</param>
+		/// <param name="trackingFields">Tracking fields.</param>
+		/// <param name="cancellationToken">The cancellation token.</param>
+		/// <returns>
+		/// The async task.
+		/// </returns>
+		Task UpdateRecurringWebinarAsync(long webinarId, string topic = null, string agenda = null, DateTime? start = null, int? duration = null, RecurrenceInfo recurrence = null, string password = null, WebinarSettings settings = null, IDictionary<string, string> trackingFields = null, CancellationToken cancellationToken = default);
+
 		/// <summary>
 		/// Delete a webinar.
 		/// </summary>
diff --git a/Source/ZoomNet/Resources/Meetings.cs b/Source/ZoomNet/Resources/Meetings.cs
index 3e79b657..59e7c095 100644
--- a/Source/ZoomNet/Resources/Meetings.cs
+++ b/Source/ZoomNet/Resources/Meetings.cs
@@ -724,7 +724,7 @@ public Task StartLiveStreamAsync(long meetingId, bool displaySpeakerName, string
 		{
 			var data = new JObject()
 			{
-				{ "action", "Start" },
+				{ "action", "start" },
 				{
 					"settings", new JObject()
 					{
diff --git a/Source/ZoomNet/Resources/Webinars.cs b/Source/ZoomNet/Resources/Webinars.cs
index 2a8f4e56..126ecab9 100644
--- a/Source/ZoomNet/Resources/Webinars.cs
+++ b/Source/ZoomNet/Resources/Webinars.cs
@@ -90,7 +90,7 @@ public Task<PaginatedResponseWithToken<Webinar>> GetAllAsync(string userId, int
 		/// <param name="agenda">Webinar description.</param>
 		/// <param name="start">Webinar start time.</param>
 		/// <param name="duration">Webinar duration (minutes).</param>
-		/// <param name="password">Password to join the webinar. Password may only contain the following characters: [a-z A-Z 0-9 @ - _ *]. Max of 10 characters.</param>
+		/// <param name="password">Password to join the webinar. By default the password may only contain the following characters: [a-z A-Z 0-9 @ - _ *]. Max of 10 characters. This can be updated within Zoom account settings.</param>
 		/// <param name="settings">Webinar settings.</param>
 		/// <param name="trackingFields">Tracking fields.</param>
 		/// <param name="cancellationToken">The cancellation token.</param>
@@ -120,6 +120,47 @@ public Task<ScheduledWebinar> CreateScheduledWebinarAsync(string userId, string
 				.AsObject<ScheduledWebinar>();
 		}
 
+		/// <summary>
+		/// Updates an existing scheduled webinar.
+		/// </summary>
+		/// <param name="webinarId">The webinar ID.</param>
+		/// <param name="topic">Webinar topic.</param>
+		/// <param name="agenda">Webinar description.</param>
+		/// <param name="start">Webinar start time.</param>
+		/// <param name="duration">Webinar duration (minutes).</param>
+		/// <param name="password">Password to join the webinar. By default the password may only contain the following characters: [a-z A-Z 0-9 @ - _ *]. Max of 10 characters. This can be updated within Zoom account settings.</param>
+		/// <param name="settings">Webinar settings.</param>
+		/// <param name="trackingFields">Tracking fields.</param>
+		/// <param name="cancellationToken">The cancellation token.</param>
+		/// <returns>
+		/// The async task.
+		/// </returns>
+		public async Task UpdateScheduledWebinarAsync(long webinarId, string topic = null, string agenda = null, DateTime? start = null, int? duration = null, string password = null, WebinarSettings settings = null, IDictionary<string, string> trackingFields = null, CancellationToken cancellationToken = default)
+		{
+			var data = new JObject();
+			data.AddPropertyIfValue("topic", topic);
+			data.AddPropertyIfValue("agenda", agenda);
+			data.AddPropertyIfValue("password", password);
+			data.AddPropertyIfValue("start_time", start?.ToUniversalTime().ToString("yyyy-MM-dd'T'HH:mm:ss'Z'"));
+			data.AddPropertyIfValue("duration", duration);
+			if (start.HasValue) data.Add("timezone", "UTC");
+			data.AddPropertyIfValue("settings", settings);
+			data.AddPropertyIfValue("tracking_fields", trackingFields?.Select(tf => new JObject() { { "field", tf.Key }, { "value", tf.Value } }));
+
+			var result = await _client
+				.PatchAsync($"webinars/{webinarId}")
+				.WithJsonBody(data)
+				.WithCancellationToken(cancellationToken)
+				.AsMessage()
+				.ConfigureAwait(false);
+
+			if (result.StatusCode == System.Net.HttpStatusCode.OK)
+			{
+				// Zoom returns an HTTP 200 message when there is no webinar subscription and instead returns a 204 after a successful update
+				throw new NotSupportedException("Webinar subscription plan is missing. Enable webinar for this user once the subscription is added");
+			}
+		}
+
 		/// <summary>
 		/// Creates a recurring webinar for a user.
 		/// </summary>
@@ -129,7 +170,7 @@ public Task<ScheduledWebinar> CreateScheduledWebinarAsync(string userId, string
 		/// <param name="start">Webinar start time.</param>
 		/// <param name="duration">Webinar duration (minutes).</param>
 		/// <param name="recurrence">Recurrence information.</param>
-		/// <param name="password">Password to join the webinar. Password may only contain the following characters: [a-z A-Z 0-9 @ - _ *]. Max of 10 characters.</param>
+		/// <param name="password">Password to join the webinar. By default the password may only contain the following characters: [a-z A-Z 0-9 @ - _ *]. Max of 10 characters. This can be updated within Zoom account settings.</param>
 		/// <param name="settings">Webinar settings.</param>
 		/// <param name="trackingFields">Tracking fields.</param>
 		/// <param name="cancellationToken">The cancellation token.</param>
@@ -162,6 +203,49 @@ public Task<RecurringWebinar> CreateRecurringWebinarAsync(string userId, string
 				.AsObject<RecurringWebinar>();
 		}
 
+		/// <summary>
+		/// Updates an existing recurring webinar for a user.
+		/// </summary>
+		/// <param name="webinarId">The webinar ID.</param>
+		/// <param name="topic">Webinar topic.</param>
+		/// <param name="agenda">Webinar description.</param>
+		/// <param name="start">Webinar start time.</param>
+		/// <param name="duration">Webinar duration (minutes).</param>
+		/// <param name="recurrence">Recurrence information.</param>
+		/// <param name="password">Password to join the webinar. By default the password may only contain the following characters: [a-z A-Z 0-9 @ - _ *]. Max of 10 characters. This can be updated within Zoom account settings.</param>
+		/// <param name="settings">Webinar settings.</param>
+		/// <param name="trackingFields">Tracking fields.</param>
+		/// <param name="cancellationToken">The cancellation token.</param>
+		/// <returns>
+		/// The async task.
+		/// </returns>
+		public async Task UpdateRecurringWebinarAsync(long webinarId, string topic = null, string agenda = null, DateTime? start = null, int? duration = null, RecurrenceInfo recurrence = null, string password = null, WebinarSettings settings = null, IDictionary<string, string> trackingFields = null, CancellationToken cancellationToken = default)
+		{
+			var data = new JObject();
+			data.AddPropertyIfValue("topic", topic);
+			data.AddPropertyIfValue("agenda", agenda);
+			data.AddPropertyIfValue("password", password);
+			data.AddPropertyIfValue("start_time", start?.ToUniversalTime().ToString("yyyy-MM-dd'T'HH:mm:ss'Z'"));
+			data.AddPropertyIfValue("duration", duration);
+			data.AddPropertyIfValue("recurrence", recurrence);
+			if (start.HasValue) data.Add("timezone", "UTC");
+			data.AddPropertyIfValue("settings", settings);
+			data.AddPropertyIfValue("tracking_fields", trackingFields?.Select(tf => new JObject() { { "field", tf.Key }, { "value", tf.Value } }));
+
+			var result = await _client
+				.PatchAsync($"webinars/{webinarId}")
+				.WithJsonBody(data)
+				.WithCancellationToken(cancellationToken)
+				.AsMessage()
+				.ConfigureAwait(false);
+
+			if (result.StatusCode == System.Net.HttpStatusCode.OK)
+			{
+				// Zoom returns an HTTP 200 message when there is no webinar subscription and instead returns a 204 after a successful update
+				throw new NotSupportedException("Webinar subscription plan is missing. Enable webinar for this user once the subscription is added");
+			}
+		}
+
 		/// <summary>
 		/// Retrieve the details of a webinar.
 		/// </summary>