diff --git a/slack-api-model/src/main/java/com/slack/api/model/event/MessageChannelConvertToPublicEvent.java b/slack-api-model/src/main/java/com/slack/api/model/event/MessageChannelConvertToPublicEvent.java
new file mode 100644
index 000000000..6962ae4f3
--- /dev/null
+++ b/slack-api-model/src/main/java/com/slack/api/model/event/MessageChannelConvertToPublicEvent.java
@@ -0,0 +1,23 @@
+package com.slack.api.model.event;
+
+import lombok.Data;
+
+/**
+ * https://api.slack.com/events/message/channel_convert_to_public
+ */
+@Data
+public class MessageChannelConvertToPublicEvent implements Event {
+
+    public static final String TYPE_NAME = "message";
+    public static final String SUBTYPE_NAME = "channel_convert_to_public";
+
+    private final String type = TYPE_NAME;
+    private final String subtype = SUBTYPE_NAME;
+
+    private String user;
+    private String text;
+    private String channel;
+    private String ts;
+    private String eventTs;
+    private String channelType; // "channel"
+}
diff --git a/slack-api-model/src/test/java/test_locally/api/model/event/MessageChannelConvertToPublicEventTest.java b/slack-api-model/src/test/java/test_locally/api/model/event/MessageChannelConvertToPublicEventTest.java
new file mode 100644
index 000000000..659d28e22
--- /dev/null
+++ b/slack-api-model/src/test/java/test_locally/api/model/event/MessageChannelConvertToPublicEventTest.java
@@ -0,0 +1,53 @@
+package test_locally.api.model.event;
+
+import com.slack.api.model.event.MessageChannelConvertToPublicEvent;
+import org.junit.Test;
+import test_locally.unit.GsonFactory;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.hamcrest.MatcherAssert.assertThat;
+
+public class MessageChannelConvertToPublicEventTest {
+
+    @Test
+    public void typeName() {
+        assertThat(MessageChannelConvertToPublicEvent.TYPE_NAME, is("message"));
+        assertThat(MessageChannelConvertToPublicEvent.SUBTYPE_NAME, is("channel_convert_to_public"));
+    }
+
+    @Test
+    public void deserialize_simple() {
+        String json = "{\n" +
+                "  \"subtype\": \"channel_convert_to_public\",\n" +
+                "  \"user\": \"W013QGS7BPF\",\n" +
+                "  \"text\": \"made this channel *public*. Any member in this workspace can see and join it.\",\n" +
+                "  \"type\": \"message\",\n" +
+                "  \"ts\": \"1728976211.166339\",\n" +
+                "  \"channel\": \"C07RP9QHR2S\",\n" +
+                "  \"event_ts\": \"1728976211.166339\",\n" +
+                "  \"channel_type\": \"channel\"\n" +
+                "}";
+        MessageChannelConvertToPublicEvent event = GsonFactory.createSnakeCase(true, true).fromJson(json, MessageChannelConvertToPublicEvent.class);
+        assertThat(event.getType(), is("message"));
+        assertThat(event.getSubtype(), is("channel_convert_to_public"));
+        assertThat(event.getUser(), is("W013QGS7BPF"));
+    }
+
+    @Test
+    public void deserialize_api_document() {
+        String json = "{\n" +
+                "  \"type\": \"message\",\n" +
+                "  \"subtype\": \"channel_convert_to_public\",\n" +
+                "  \"ts\": \"1723680078.026719\",\n" +
+                "  \"text\": \"Made this channel public. Any member in this workspace can see and join it.\",\n" +
+                "  \"user\": \"U123ABC456\",\n" +
+                "  \"channel\": \"C123ABC456\",\n" +
+                "  \"event_ts\": \"1614215651.001300\",\n" +
+                "  \"channel_type\": \"channel\"\n" +
+                "}";
+        MessageChannelConvertToPublicEvent event = GsonFactory.createSnakeCase(true, true).fromJson(json, MessageChannelConvertToPublicEvent.class);
+        assertThat(event.getType(), is("message"));
+        assertThat(event.getSubtype(), is("channel_convert_to_public"));
+        assertThat(event.getUser(), is("U123ABC456"));
+    }
+}
diff --git a/slack-app-backend/src/main/java/com/slack/api/app_backend/events/handler/MessageChannelConvertToPublicHandler.java b/slack-app-backend/src/main/java/com/slack/api/app_backend/events/handler/MessageChannelConvertToPublicHandler.java
new file mode 100644
index 000000000..842e39d13
--- /dev/null
+++ b/slack-app-backend/src/main/java/com/slack/api/app_backend/events/handler/MessageChannelConvertToPublicHandler.java
@@ -0,0 +1,18 @@
+package com.slack.api.app_backend.events.handler;
+
+import com.slack.api.app_backend.events.EventHandler;
+import com.slack.api.app_backend.events.payload.MessageChannelConvertToPublicPayload;
+import com.slack.api.model.event.MessageChannelConvertToPublicEvent;
+
+public abstract class MessageChannelConvertToPublicHandler extends EventHandler<MessageChannelConvertToPublicPayload> {
+
+    @Override
+    public String getEventType() {
+        return MessageChannelConvertToPublicEvent.TYPE_NAME;
+    }
+
+    @Override
+    public String getEventSubtype() {
+        return MessageChannelConvertToPublicEvent.SUBTYPE_NAME;
+    }
+}
diff --git a/slack-app-backend/src/main/java/com/slack/api/app_backend/events/payload/MessageChannelConvertToPublicPayload.java b/slack-app-backend/src/main/java/com/slack/api/app_backend/events/payload/MessageChannelConvertToPublicPayload.java
new file mode 100644
index 000000000..fb1c20ed6
--- /dev/null
+++ b/slack-app-backend/src/main/java/com/slack/api/app_backend/events/payload/MessageChannelConvertToPublicPayload.java
@@ -0,0 +1,25 @@
+package com.slack.api.app_backend.events.payload;
+
+import com.slack.api.model.event.MessageChannelConvertToPublicEvent;
+import lombok.Data;
+
+import java.util.List;
+
+@Data
+public class MessageChannelConvertToPublicPayload implements EventsApiPayload<MessageChannelConvertToPublicEvent> {
+
+    private String token;
+    private String enterpriseId;
+    private String teamId;
+    private String apiAppId;
+    private String type;
+    private List<String> authedUsers;
+    private List<String> authedTeams;
+    private List<Authorization> authorizations;
+    private boolean isExtSharedChannel;
+    private String eventId;
+    private Integer eventTime;
+    private String eventContext;
+
+    private MessageChannelConvertToPublicEvent event;
+}
diff --git a/slack-app-backend/src/main/java/com/slack/api/app_backend/events/payload/SharedChannelInviteReceivedPayload.java b/slack-app-backend/src/main/java/com/slack/api/app_backend/events/payload/SharedChannelInviteReceivedPayload.java
index dcadc9c3d..87f27d473 100644
--- a/slack-app-backend/src/main/java/com/slack/api/app_backend/events/payload/SharedChannelInviteReceivedPayload.java
+++ b/slack-app-backend/src/main/java/com/slack/api/app_backend/events/payload/SharedChannelInviteReceivedPayload.java
@@ -1,7 +1,6 @@
 package com.slack.api.app_backend.events.payload;
 
 import com.slack.api.model.event.SharedChannelInviteReceivedEvent;
-import com.slack.api.model.event.TeamJoinEvent;
 import lombok.Data;
 
 import java.util.List;