diff --git a/src/main/java/net/minestom/server/utils/time/TimeUnit.java b/src/main/java/net/minestom/server/utils/time/TimeUnit.java
index 0b9805391..73d00450f 100644
--- a/src/main/java/net/minestom/server/utils/time/TimeUnit.java
+++ b/src/main/java/net/minestom/server/utils/time/TimeUnit.java
@@ -2,6 +2,10 @@ package net.minestom.server.utils.time;
 
 import net.minestom.server.MinecraftServer;
 
+/**
+ * @deprecated Replaced by {@link java.time.temporal.TemporalUnit}
+ */
+@Deprecated(forRemoval = true)
 public enum TimeUnit {
 
     TICK, DAY, HOUR, MINUTE, SECOND, MILLISECOND;
diff --git a/src/main/java/net/minestom/server/utils/time/UpdateOption.java b/src/main/java/net/minestom/server/utils/time/UpdateOption.java
index 7f186bc73..603d3de13 100644
--- a/src/main/java/net/minestom/server/utils/time/UpdateOption.java
+++ b/src/main/java/net/minestom/server/utils/time/UpdateOption.java
@@ -4,6 +4,10 @@ import org.jetbrains.annotations.NotNull;
 
 import java.util.Objects;
 
+/**
+ * @deprecated Replaced by {@link java.time.Duration}
+ */
+@Deprecated(forRemoval = true)
 public class UpdateOption {
 
     private final long value;