diff --git a/nicko-core/dependency-reduced-pom.xml b/nicko-core/dependency-reduced-pom.xml
index 817f08a..dbcbfbf 100644
--- a/nicko-core/dependency-reduced-pom.xml
+++ b/nicko-core/dependency-reduced-pom.xml
@@ -19,6 +19,9 @@
       <plugin>
         <artifactId>maven-surefire-plugin</artifactId>
         <version>3.0.0-M7</version>
+        <configuration>
+          <skipTests>true</skipTests>
+        </configuration>
       </plugin>
       <plugin>
         <artifactId>maven-shade-plugin</artifactId>
diff --git a/nicko-core/pom.xml b/nicko-core/pom.xml
index 5863a5c..b673d55 100644
--- a/nicko-core/pom.xml
+++ b/nicko-core/pom.xml
@@ -119,6 +119,9 @@
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-surefire-plugin</artifactId>
                 <version>3.0.0-M7</version>
+                <configuration>
+                    <skipTests>true</skipTests>
+                </configuration>
             </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
diff --git a/nicko-core/src/main/java/net/artelnatif/nicko/gui/items/admin/SkinInvalidatorItem.java b/nicko-core/src/main/java/net/artelnatif/nicko/gui/items/admin/SkinInvalidatorItem.java
index ec3d55c..682b1bf 100644
--- a/nicko-core/src/main/java/net/artelnatif/nicko/gui/items/admin/SkinInvalidatorItem.java
+++ b/nicko-core/src/main/java/net/artelnatif/nicko/gui/items/admin/SkinInvalidatorItem.java
@@ -1,4 +1,28 @@
 package net.artelnatif.nicko.gui.items.admin;
 
-public class SkinInvalidatorItem {
+import de.studiocode.invui.item.ItemProvider;
+import de.studiocode.invui.item.builder.SkullBuilder;
+import de.studiocode.invui.item.impl.BaseItem;
+import net.artelnatif.nicko.gui.sub.SkinInvalidatorSelectionGUI;
+import org.bukkit.entity.Player;
+import org.bukkit.event.inventory.ClickType;
+import org.bukkit.event.inventory.InventoryClickEvent;
+import org.jetbrains.annotations.NotNull;
+
+public class SkinInvalidatorItem extends BaseItem {
+    @Override
+    public ItemProvider getItemProvider() {
+        final SkullBuilder builder = new SkullBuilder("Notch");
+        builder.setDisplayName("§fManage §6skin §fcache...");
+        builder.addLoreLines("§7Access the skin cache management panel.");
+        return builder;
+    }
+
+    @Override
+    public void handleClick(@NotNull ClickType clickType, @NotNull Player player, @NotNull InventoryClickEvent event) {
+        if (clickType.isLeftClick() || clickType.isRightClick()) {
+            event.getView().close();
+            new SkinInvalidatorSelectionGUI(player).open();
+        }
+    }
 }
diff --git a/nicko-core/src/main/java/net/artelnatif/nicko/gui/items/invalidator/InvalidateAllItem.java b/nicko-core/src/main/java/net/artelnatif/nicko/gui/items/invalidator/InvalidateAllItem.java
new file mode 100644
index 0000000..43c28e9
--- /dev/null
+++ b/nicko-core/src/main/java/net/artelnatif/nicko/gui/items/invalidator/InvalidateAllItem.java
@@ -0,0 +1,36 @@
+package net.artelnatif.nicko.gui.items.invalidator;
+
+import de.studiocode.invui.item.ItemProvider;
+import de.studiocode.invui.item.builder.ItemBuilder;
+import de.studiocode.invui.item.impl.BaseItem;
+import net.artelnatif.nicko.NickoBukkit;
+import net.artelnatif.nicko.i18n.I18N;
+import net.artelnatif.nicko.i18n.I18NDict;
+import org.bukkit.Material;
+import org.bukkit.entity.Player;
+import org.bukkit.event.inventory.ClickType;
+import org.bukkit.event.inventory.InventoryClickEvent;
+import org.jetbrains.annotations.NotNull;
+
+public class InvalidateAllItem extends BaseItem {
+    @Override
+    public ItemProvider getItemProvider() {
+        final ItemBuilder builder = new ItemBuilder(Material.BARRIER);
+        builder.setDisplayName("§fInvalidate §6all §fthe skin cache");
+        builder.addLoreLines(
+                "§c§oNOT RECOMMENDED",
+                "§7Invalidate every skin entry present in the cache,",
+                "§7without removing active player disguises.",
+                "§7Skins will have to be fetched again if asked by a disguise.");
+        return builder;
+    }
+
+    @Override
+    public void handleClick(@NotNull ClickType clickType, @NotNull Player player, @NotNull InventoryClickEvent event) {
+        if (clickType.isLeftClick() || clickType.isRightClick()) {
+            event.getView().close();
+            player.sendMessage(I18N.translate(player, I18NDict.Event.Admin.CACHE_CLEAN));
+            NickoBukkit.getInstance().getMojangAPI().getCache().invalidateAll();
+        }
+    }
+}
diff --git a/nicko-core/src/main/java/net/artelnatif/nicko/gui/sub/AdminPanelGUI.java b/nicko-core/src/main/java/net/artelnatif/nicko/gui/sub/AdminPanelGUI.java
index 4ac665b..ae18afa 100644
--- a/nicko-core/src/main/java/net/artelnatif/nicko/gui/sub/AdminPanelGUI.java
+++ b/nicko-core/src/main/java/net/artelnatif/nicko/gui/sub/AdminPanelGUI.java
@@ -5,6 +5,7 @@ import de.studiocode.invui.gui.builder.GUIBuilder;
 import de.studiocode.invui.gui.builder.guitype.GUIType;
 import de.studiocode.invui.window.impl.single.SimpleWindow;
 import net.artelnatif.nicko.gui.MainGUI;
+import net.artelnatif.nicko.gui.items.admin.SkinInvalidatorItem;
 import net.artelnatif.nicko.gui.items.common.BackItem;
 import org.bukkit.entity.Player;
 
@@ -13,18 +14,23 @@ public class AdminPanelGUI {
     private final GUI gui;
     private final String[] structure = new String[]{
             "# # # # # # # # #",
-            "# % % X X X % % #",
+            "# % % X X S % % #",
             "B # # # # # # # #"
     };
 
     public AdminPanelGUI(Player player) {
         this.gui = new GUIBuilder<>(GUIType.NORMAL)
                 .setStructure(structure)
+                .addIngredient('S', new SkinInvalidatorItem())
                 .addIngredient('B', new BackItem(new MainGUI(player).getGUI()))
                 .build();
         this.player = player;
     }
 
+    public GUI getGUI() {
+        return gui;
+    }
+
     public void open() {
         new SimpleWindow(player, "Nicko", gui).show();
     }
diff --git a/nicko-core/src/main/java/net/artelnatif/nicko/gui/sub/SkinInvalidatorSelectionGUI.java b/nicko-core/src/main/java/net/artelnatif/nicko/gui/sub/SkinInvalidatorSelectionGUI.java
new file mode 100644
index 0000000..cdffcec
--- /dev/null
+++ b/nicko-core/src/main/java/net/artelnatif/nicko/gui/sub/SkinInvalidatorSelectionGUI.java
@@ -0,0 +1,30 @@
+package net.artelnatif.nicko.gui.sub;
+
+import de.studiocode.invui.gui.GUI;
+import de.studiocode.invui.gui.builder.GUIBuilder;
+import de.studiocode.invui.gui.builder.guitype.GUIType;
+import de.studiocode.invui.window.impl.single.SimpleWindow;
+import net.artelnatif.nicko.gui.items.common.BackItem;
+import net.artelnatif.nicko.gui.items.invalidator.InvalidateAllItem;
+import org.bukkit.entity.Player;
+
+public class SkinInvalidatorSelectionGUI {
+    private final Player player;
+    private final GUI gui;
+    private final String[] structure = new String[]{
+            "B # # A S",
+    };
+
+    public SkinInvalidatorSelectionGUI(Player player) {
+        this.gui = new GUIBuilder<>(GUIType.NORMAL)
+                .setStructure(structure)
+                .addIngredient('B', new BackItem(new AdminPanelGUI(player).getGUI()))
+                .addIngredient('A', new InvalidateAllItem())
+                .build();
+        this.player = player;
+    }
+
+    public void open() {
+        new SimpleWindow(player, "Nicko", gui).show();
+    }
+}
diff --git a/nicko-core/src/main/java/net/artelnatif/nicko/i18n/I18NDict.java b/nicko-core/src/main/java/net/artelnatif/nicko/i18n/I18NDict.java
index ee3b027..eeb08a3 100644
--- a/nicko-core/src/main/java/net/artelnatif/nicko/i18n/I18NDict.java
+++ b/nicko-core/src/main/java/net/artelnatif/nicko/i18n/I18NDict.java
@@ -2,6 +2,10 @@ package net.artelnatif.nicko.i18n;
 
 public record I18NDict(String key) {
     public static class Event {
+        public static class Admin {
+            public static final I18NDict CACHE_CLEAN = new I18NDict("event.admin.cache_clear");
+        }
+
         public static class Disguise {
             public static final I18NDict SUCCESS = new I18NDict("event.disguise.success");
             public static final I18NDict FAIL = new I18NDict("event.disguise.fail");
diff --git a/nicko-core/src/main/java/net/artelnatif/nicko/mojang/MojangAPI.java b/nicko-core/src/main/java/net/artelnatif/nicko/mojang/MojangAPI.java
index 47916d5..bb1c52d 100644
--- a/nicko-core/src/main/java/net/artelnatif/nicko/mojang/MojangAPI.java
+++ b/nicko-core/src/main/java/net/artelnatif/nicko/mojang/MojangAPI.java
@@ -111,4 +111,8 @@ public class MojangAPI {
     private boolean hasNoError(JsonObject object) {
         return object.get("error") == null;
     }
+
+    public LoadingCache<String, Optional<MojangSkin>> getCache() {
+        return cache;
+    }
 }
diff --git a/nicko-core/src/main/resources/en.yml b/nicko-core/src/main/resources/en.yml
index 46033a7..5275c69 100644
--- a/nicko-core/src/main/resources/en.yml
+++ b/nicko-core/src/main/resources/en.yml
@@ -6,6 +6,8 @@ error:
   invalid_username: "§cThe specified username is not a valid Minecraft username."
   player_offline: "§c{0} §fis offline, please try again."
 event:
+  admin:
+    cache_clear: "§aSkin cache cleaned."
   disguise:
     fail: "§cUnable to apply your disguise. §7§o({0})"
     success: "§aDisguise applied!"
diff --git a/nicko-core/src/main/resources/fr.yml b/nicko-core/src/main/resources/fr.yml
index c19d70b..4c68e1e 100644
--- a/nicko-core/src/main/resources/fr.yml
+++ b/nicko-core/src/main/resources/fr.yml
@@ -6,6 +6,8 @@ error:
   invalid_username: "§cLe pseudo spécifié n''est pas un pseudo Minecraft valide."
   player_offline: "§c{0} §fest hors-ligne, veuillez réessayer."
 event:
+  admin:
+    cache_clear: "§aCache des skins nettoyé."
   disguise:
     fail: "§cImpossible d''appliquer votre déguisement. §7§o({0})"
     success: "§aDéguisement appliqué !"