diff --git a/src/main/java/com/hackclub/hccore/listeners/PlayerListener.java b/src/main/java/com/hackclub/hccore/listeners/PlayerListener.java
index 3e1d776..a00f9d5 100644
--- a/src/main/java/com/hackclub/hccore/listeners/PlayerListener.java
+++ b/src/main/java/com/hackclub/hccore/listeners/PlayerListener.java
@@ -92,15 +92,20 @@ public void onAsyncPlayerChat(final AsyncPlayerChatEvent event) {
   }
 
   public static boolean isSlackJoinAllowed(PlayerData data) {
-    if (!HCCorePlugin.getPlugin(HCCorePlugin.class).getConfig()
+    HCCorePlugin plugin = HCCorePlugin.getPlugin(HCCorePlugin.class);
+
+    if (!plugin.getConfig()
         .getBoolean("settings.slack-link.enabled", false)) {
       return true;
     }
-    if (!HCCorePlugin.getPlugin(HCCorePlugin.class).getConfig()
+    if (!plugin.getConfig()
         .getBoolean("settings.slack-link.required", false)) {
       return true;
     }
-    return data.getSlackId() != null;
+
+    String id = data.getSlackId();
+
+    return !plugin.getSlackBot().isDeactivated(id);
   }
 
 
diff --git a/src/main/java/com/hackclub/hccore/slack/SlackBot.java b/src/main/java/com/hackclub/hccore/slack/SlackBot.java
index 0c9709e..2cd6741 100644
--- a/src/main/java/com/hackclub/hccore/slack/SlackBot.java
+++ b/src/main/java/com/hackclub/hccore/slack/SlackBot.java
@@ -460,6 +460,21 @@ public void onCustomAdvancementProgressed(ProgressionUpdateEvent e) {
     }
   }
 
+  public boolean isDeactivated(String id) {
+    MethodsClient client = app.getClient();
+
+    try {
+      var res = client.usersInfo(r -> r.token(getBotToken()).user(id));
+
+      return res.getUser().isDeleted();
+    } catch (SlackApiException e) {
+      return true;
+    } catch (IOException e) {
+      e.printStackTrace();
+      return true;
+    }
+  }
+
   private String getSlackChannel() {
     String id = this.plugin.getConfig().getString("settings.slack-link.channel-id");