diff --git a/fabric/src/main/java/org/popcraft/chunky/listeners/bossbar/BossBarTaskUpdateListener.java b/fabric/src/main/java/org/popcraft/chunky/listeners/bossbar/BossBarTaskUpdateListener.java
index 93e695f2..19a1b62e 100644
--- a/fabric/src/main/java/org/popcraft/chunky/listeners/bossbar/BossBarTaskUpdateListener.java
+++ b/fabric/src/main/java/org/popcraft/chunky/listeners/bossbar/BossBarTaskUpdateListener.java
@@ -1,11 +1,11 @@
 package org.popcraft.chunky.listeners.bossbar;
 
+import me.lucko.fabric.api.permissions.v0.Permissions;
 import net.minecraft.network.chat.Component;
 import net.minecraft.resources.Identifier;
 import net.minecraft.server.MinecraftServer;
 import net.minecraft.server.level.ServerBossEvent;
 import net.minecraft.server.level.ServerPlayer;
-import net.minecraft.server.permissions.Permissions;
 import net.minecraft.world.BossEvent;
 import net.minecraft.world.level.Level;
 import org.popcraft.chunky.Chunky;
@@ -19,6 +19,19 @@
 import java.util.function.Consumer;
 
 public class BossBarTaskUpdateListener implements Consumer<GenerationTaskUpdateEvent> {
+    private static final boolean HAS_PERMISSIONS;
+
+    static {
+        boolean hasPermissions;
+        try {
+            Class.forName("me.lucko.fabric.api.permissions.v0.Permissions");
+            hasPermissions = true;
+        } catch (ClassNotFoundException e) {
+            hasPermissions = false;
+        }
+        HAS_PERMISSIONS = hasPermissions;
+    }
+
     private final Map<Identifier, ServerBossEvent> bossBars;
 
     public BossBarTaskUpdateListener(final Map<Identifier, ServerBossEvent> bossBars) {
@@ -41,7 +54,7 @@ public void accept(final GenerationTaskUpdateEvent event) {
         }
         final MinecraftServer server = fabricWorld.getWorld().getServer();
         for (final ServerPlayer player : server.getPlayerList().getPlayers()) {
-            if (player.permissions().hasPermission(Permissions.COMMANDS_GAMEMASTER)) {
+            if (hasBossBarPermission(server, player)) {
                 bossBar.addPlayer(player);
             } else {
                 bossBar.removePlayer(player);
@@ -61,6 +74,17 @@ public void accept(final GenerationTaskUpdateEvent event) {
         }
     }
 
+    private static boolean hasBossBarPermission(final MinecraftServer server, final ServerPlayer player) {
+        if (server != null && server.isSingleplayer()) {
+            return true;
+        }
+        if (HAS_PERMISSIONS) {
+            return (Permissions.check(player, "chunky.command", 2)
+                    || Permissions.check(player, "chunky.progressbar", 2));
+        }
+        return player.permissions().hasPermission(net.minecraft.server.permissions.Permissions.COMMANDS_GAMEMASTER);
+    }
+
     private ServerBossEvent createNewBossBar(final Identifier worldIdentifier) {
         final ServerBossEvent bossBar = new ServerBossEvent(
                 UUID.randomUUID(),
diff --git a/forge/src/main/java/org/popcraft/chunky/listeners/bossbar/BossBarTaskUpdateListener.java b/forge/src/main/java/org/popcraft/chunky/listeners/bossbar/BossBarTaskUpdateListener.java
index 20ebe9a3..658e0111 100644
--- a/forge/src/main/java/org/popcraft/chunky/listeners/bossbar/BossBarTaskUpdateListener.java
+++ b/forge/src/main/java/org/popcraft/chunky/listeners/bossbar/BossBarTaskUpdateListener.java
@@ -41,7 +41,7 @@ public void accept(final GenerationTaskUpdateEvent event) {
         }
         final MinecraftServer server = forgeWorld.getWorld().getServer();
         for (final ServerPlayer player : server.getPlayerList().getPlayers()) {
-            if (player.permissions().hasPermission(Permissions.COMMANDS_GAMEMASTER)) {
+            if (hasBossBarPermission(server, player)) {
                 bossBar.addPlayer(player);
             } else {
                 bossBar.removePlayer(player);
@@ -61,6 +61,13 @@ public void accept(final GenerationTaskUpdateEvent event) {
         }
     }
 
+    private static boolean hasBossBarPermission(final MinecraftServer server, final ServerPlayer player) {
+        if (server != null && server.isSingleplayer()) {
+            return true;
+        }
+        return player.permissions().hasPermission(Permissions.COMMANDS_GAMEMASTER);
+    }
+
     private ServerBossEvent createNewBossBar(final Identifier worldIdentifier) {
         final ServerBossEvent bossBar = new ServerBossEvent(
                 UUID.randomUUID(),
diff --git a/neoforge/src/main/java/org/popcraft/chunky/listeners/bossbar/BossBarTaskUpdateListener.java b/neoforge/src/main/java/org/popcraft/chunky/listeners/bossbar/BossBarTaskUpdateListener.java
index 9759176e..1693918e 100644
--- a/neoforge/src/main/java/org/popcraft/chunky/listeners/bossbar/BossBarTaskUpdateListener.java
+++ b/neoforge/src/main/java/org/popcraft/chunky/listeners/bossbar/BossBarTaskUpdateListener.java
@@ -41,7 +41,7 @@ public void accept(final GenerationTaskUpdateEvent event) {
         }
         final MinecraftServer server = neoForgeWorld.getWorld().getServer();
         for (final ServerPlayer player : server.getPlayerList().getPlayers()) {
-            if (player.permissions().hasPermission(Permissions.COMMANDS_GAMEMASTER)) {
+            if (hasBossBarPermission(server, player)) {
                 bossBar.addPlayer(player);
             } else {
                 bossBar.removePlayer(player);
@@ -61,6 +61,13 @@ public void accept(final GenerationTaskUpdateEvent event) {
         }
     }
 
+    private static boolean hasBossBarPermission(final MinecraftServer server, final ServerPlayer player) {
+        if (server != null && server.isSingleplayer()) {
+            return true;
+        }
+        return player.permissions().hasPermission(Permissions.COMMANDS_GAMEMASTER);
+    }
+
     private ServerBossEvent createNewBossBar(final Identifier worldIdentifier) {
         final ServerBossEvent bossBar = new ServerBossEvent(
                 UUID.randomUUID(),