diff --git a/src/main/java/net/minestom/server/advancements/notifications/Notification.java b/src/main/java/net/minestom/server/advancements/notifications/Notification.java
deleted file mode 100644
index e84bf5339aa..00000000000
--- a/src/main/java/net/minestom/server/advancements/notifications/Notification.java
+++ /dev/null
@@ -1,20 +0,0 @@
-package net.minestom.server.advancements.notifications;
-
-import net.kyori.adventure.text.Component;
-import net.minestom.server.advancements.FrameType;
-import net.minestom.server.item.ItemStack;
-import net.minestom.server.item.Material;
-import org.jetbrains.annotations.NotNull;
-
-/**
- * Represents a message which can be sent using the {@link NotificationCenter}.
- * @since 1.0.0
- * @deprecated As of Minestom 22a8ccabfae38c53df0605000aa7eed49765c1ab, because the Maintainability is very hard and
- *      can break everytime from Mojang side because bad api design use {@link net.minestom.server.notifications.Notification#builder()} instead.
- */
-@Deprecated(since = "1.4.1", forRemoval = true)
-public record Notification(@NotNull Component title, @NotNull FrameType frameType, @NotNull ItemStack icon) {
-    public Notification(@NotNull Component title, @NotNull FrameType frameType, @NotNull Material icon) {
-        this(title, frameType, ItemStack.of(icon));
-    }
-}
diff --git a/src/main/java/net/minestom/server/advancements/notifications/NotificationCenter.java b/src/main/java/net/minestom/server/advancements/notifications/NotificationCenter.java
deleted file mode 100644
index 968c75fbd21..00000000000
--- a/src/main/java/net/minestom/server/advancements/notifications/NotificationCenter.java
+++ /dev/null
@@ -1,81 +0,0 @@
-package net.minestom.server.advancements.notifications;
-
-import net.kyori.adventure.text.Component;
-import net.minestom.server.entity.Player;
-import net.minestom.server.network.packet.server.play.AdvancementsPacket;
-import org.jetbrains.annotations.NotNull;
-
-import java.util.Collection;
-import java.util.List;
-
-/**
- * @since 1.0.0
- * Used to send one or multiples {@link Notification}.
- * <p>
- * Works by sending a completed advancement and remove it immediately.
- * <p>
- * You can simply create a {@link Notification} object and call {@link #send(Notification, Player)}.
- * @deprecated As of Minestom 22a8ccabfae38c53df0605000aa7eed49765c1ab, because the Maintainability is very hard and
- *      can break everytime from Mojang side because bad api design use {@link net.minestom.server.notifications.Notification#builder()} instead.
- */
-@Deprecated(since = "1.4.1", forRemoval = true)
-public final class NotificationCenter {
-    private static final String IDENTIFIER = "minestom:notification";
-    private static final AdvancementsPacket REMOVE_PACKET = new AdvancementsPacket(false, List.of(), List.of(IDENTIFIER), List.of());
-
-    /**
-     * Can't create an instance, use the static methods instead.
-     */
-    private NotificationCenter() {
-    }
-
-    /**
-     * Send a {@link Notification} to one player.
-     *
-     * @param notification the {@link Notification} to send
-     * @param player       the player to send the notification to
-     */
-    public static void send(@NotNull Notification notification, @NotNull Player player) {
-        player.sendPacket(createPacket(notification));
-        player.sendPacket(REMOVE_PACKET);
-    }
-
-    /**
-     * Send a {@link Notification} to a collection of players.
-     *
-     * @param notification the {@link Notification} to send
-     * @param players      the collection of players to send the notification to
-     */
-    public static void send(@NotNull Notification notification, @NotNull Collection<Player> players) {
-        // Can't use PacketWriterUtils because we need the packets to come in the correct order
-        players.forEach(player -> send(notification, player));
-    }
-
-    /**
-     * Create the {@link AdvancementsPacket} responsible for showing the Toast to players
-     *
-     * @param notification the notification
-     * @return the packet used to show the Toast
-     */
-    private static AdvancementsPacket createPacket(Notification notification) {
-        // For An advancement to be shown, it must have all of its criteria achieved (progress 100%)
-        // Create a Criteria that we can set to 100% achieved.
-        final var displayData = new AdvancementsPacket.DisplayData(
-                notification.title(), Component.text("Articdive was here. #Minestom"),
-                notification.icon(), notification.frameType(),
-                0x6, null, 0f, 0f);
-
-        final var criteria = new AdvancementsPacket.Criteria("minestom:some_criteria",
-                new AdvancementsPacket.CriterionProgress(System.currentTimeMillis()));
-
-        final var advancement = new AdvancementsPacket.Advancement(null, displayData,
-                List.of(new AdvancementsPacket.Requirement(List.of(criteria.criterionIdentifier()))),
-                false);
-
-        final var mapping = new AdvancementsPacket.AdvancementMapping(IDENTIFIER, advancement);
-        final var progressMapping = new AdvancementsPacket.ProgressMapping(IDENTIFIER,
-                new AdvancementsPacket.AdvancementProgress(List.of(criteria)));
-
-        return new AdvancementsPacket(false, List.of(mapping), List.of(), List.of(progressMapping));
-    }
-}