diff --git a/src/main/java/net/minestom/server/inventory/AbstractInventory.java b/src/main/java/net/minestom/server/inventory/AbstractInventory.java
index 9ec49f577..149b13a94 100644
--- a/src/main/java/net/minestom/server/inventory/AbstractInventory.java
+++ b/src/main/java/net/minestom/server/inventory/AbstractInventory.java
@@ -353,9 +353,8 @@ public abstract class AbstractInventory implements InventoryClickHandler, DataCo
         }
     }
 
-    @Nullable
     @Override
-    public Data getData() {
+    public @Nullable Data getData() {
         return data;
     }
 
diff --git a/src/main/java/net/minestom/server/item/ItemStack.java b/src/main/java/net/minestom/server/item/ItemStack.java
index f236f019e..72a19d244 100644
--- a/src/main/java/net/minestom/server/item/ItemStack.java
+++ b/src/main/java/net/minestom/server/item/ItemStack.java
@@ -131,12 +131,12 @@ public class ItemStack {
     }
 
     @Contract(value = "_, -> new", pure = true)
-    public @NotNull ItemStack withLore(@Nullable List<@NotNull Component> lore) {
+    public @NotNull ItemStack withLore(@NotNull List<@NotNull Component> lore) {
         return builder().lore(lore).build();
     }
 
     @Contract(value = "_, -> new", pure = true)
-    public @NotNull ItemStack withLore(@NotNull UnaryOperator<@Nullable List<@NotNull Component>> loreUnaryOperator) {
+    public @NotNull ItemStack withLore(@NotNull UnaryOperator<@NotNull List<@NotNull Component>> loreUnaryOperator) {
         return withLore(loreUnaryOperator.apply(getLore()));
     }
 
diff --git a/src/main/java/net/minestom/server/item/ItemStackBuilder.java b/src/main/java/net/minestom/server/item/ItemStackBuilder.java
index ed8ec655d..f85a4581d 100644
--- a/src/main/java/net/minestom/server/item/ItemStackBuilder.java
+++ b/src/main/java/net/minestom/server/item/ItemStackBuilder.java
@@ -60,7 +60,7 @@ public class ItemStackBuilder {
     }
 
     @Contract(value = "_ -> this")
-    public @NotNull ItemStackBuilder lore(List<@NotNull Component> lore) {
+    public @NotNull ItemStackBuilder lore(@NotNull List<@NotNull Component> lore) {
         this.metaBuilder.lore(lore);
         return this;
     }