diff --git a/gradle.properties b/gradle.properties
index e940caa..372f5e6 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,14 +1,14 @@
 # Done to increase the memory available to gradle.
 org.gradle.jvmargs=-Xmx1G
 # Fabric Properties
-minecraft_version=1.21.4-rc3
-yarn_mappings=1.21.4-rc3+build.3
-loader_version=0.16.9
+minecraft_version=1.21.4
+yarn_mappings=1.21.4+build.8
+loader_version=0.16.10
 
 # Fabric API
-fabric_version=0.110.3+1.21.4
+fabric_version=0.115.0+1.21.4
 # Mod Properties
-mod_version=2.6.2
+mod_version=2.6.3   
 maven_group=org.samo_lego
 archives_base_name=fabrictailor
 
diff --git a/src/main/java/org/samo_lego/fabrictailor/client/screen/SkinChangeScreen.java b/src/main/java/org/samo_lego/fabrictailor/client/screen/SkinChangeScreen.java
index e898001..baa4734 100644
--- a/src/main/java/org/samo_lego/fabrictailor/client/screen/SkinChangeScreen.java
+++ b/src/main/java/org/samo_lego/fabrictailor/client/screen/SkinChangeScreen.java
@@ -31,6 +31,7 @@
 import org.samo_lego.fabrictailor.client.screen.tabs.UrlSkinTab;
 import org.samo_lego.fabrictailor.mixin.client.AAbstractClientPlayer;
 import org.samo_lego.fabrictailor.network.payload.DefaultSkinPayload;
+import org.samo_lego.fabrictailor.util.Logging;
 import org.samo_lego.fabrictailor.util.TextTranslations;
 
 import java.io.File;
@@ -39,6 +40,7 @@
 import java.util.List;
 import java.util.Optional;
 import java.util.concurrent.CompletableFuture;
+import java.util.logging.Logger;
 
 import static org.samo_lego.fabrictailor.client.ClientTailor.ALLOW_DEFAULT_SKIN;
 import static org.samo_lego.fabrictailor.client.ClientTailor.TAILORED_SERVER;
@@ -176,6 +178,7 @@ private void clearSkin() {
     }
 
     private void applyNewSkin() {
+        Logging.debug("Applying new skin! On tab: " + this.selectedTab.getTitle().getString() + " with parameter: " + skinInput.getValue() + ". Slim skin: " + this.skinModelCheckbox.selected());
         new CompletableFuture<>().completeAsync(() -> {
             final var packetInfo = this.selectedTab.getSkinChangePacket(minecraft.player, skinInput.getValue(), this.skinModelCheckbox.selected());
             packetInfo.ifPresent(packet -> {
diff --git a/src/main/java/org/samo_lego/fabrictailor/client/screen/tabs/SkinTabType.java b/src/main/java/org/samo_lego/fabrictailor/client/screen/tabs/SkinTabType.java
index 88523d3..727ddb0 100644
--- a/src/main/java/org/samo_lego/fabrictailor/client/screen/tabs/SkinTabType.java
+++ b/src/main/java/org/samo_lego/fabrictailor/client/screen/tabs/SkinTabType.java
@@ -27,7 +27,7 @@ public interface SkinTabType {
     ItemStack getIcon();
 
     default boolean isSelected(int startX, int startY, int mouseX, int mouseY) {
-        return mouseX > startX && mouseX < startX + this.width && mouseY > startY && mouseY < startY + this.height;
+        return mouseX > startX && mouseX < startX + width && mouseY > startY && mouseY < startY + height;
     }
 
     Optional<CustomPacketPayload> getSkinChangePacket(LocalPlayer player, String param, boolean useSlim);
diff --git a/src/main/java/org/samo_lego/fabrictailor/util/SkinFetcher.java b/src/main/java/org/samo_lego/fabrictailor/util/SkinFetcher.java
index 75fcfdc..ce9916d 100644
--- a/src/main/java/org/samo_lego/fabrictailor/util/SkinFetcher.java
+++ b/src/main/java/org/samo_lego/fabrictailor/util/SkinFetcher.java
@@ -32,8 +32,9 @@ public static Property setSkinFromFile(String skinFilePath, boolean useSlim) {
         Logging.debug("Fetching skin from file: " + skinFilePath);
         File skinFile = new File(skinFilePath);
         try (FileInputStream input = new FileInputStream(skinFile)) {
-            Logging.debug("Checking file type: " + input.read());
-            if (input.read() == 137) {
+            var fileType = input.read();
+            Logging.debug("Checking file type: " + fileType);
+            if (fileType == 137) {
                 // Check image dimensions
                 BufferedImage image = ImageIO.read(skinFile);
                 if (image.getWidth() != 64 || (image.getHeight() != 64 && image.getHeight() != 32)) {
@@ -43,7 +44,7 @@ public static Property setSkinFromFile(String skinFilePath, boolean useSlim) {
                 
                 try {
                     Logging.debug("Uploading skin to MineSkin.");
-                    String reply = urlRequest(URI.create("https://api.mineskin.org/generate/upload?model=" + (useSlim ? "slim" : "steve")).toURL(), false, skinFile);
+                    String reply = urlRequest(URI.create("https://api.mineskin.org/generate/upload?v2=true&model=" + (useSlim ? "slim" : "steve")).toURL(), false, skinFile);
                     return getSkinFromReply(reply);
                 } catch (IOException e) {
                     // Error uploading
@@ -67,7 +68,7 @@ public static Property setSkinFromFile(String skinFilePath, boolean useSlim) {
     public static Property fetchSkinByUrl(String skinUrl, boolean useSlim) {
         Logging.debug("Fetching skin from URL: " + skinUrl);
         try {
-            URL url = URI.create(String.format("https://api.mineskin.org/generate/url?url=%s&model=%s", URLEncoder.encode(skinUrl, StandardCharsets.UTF_8), useSlim ? "slim" : "steve")).toURL();
+            URL url = URI.create(String.format("https://api.mineskin.org/generate/url?v2=true&url=%s&model=%s", URLEncoder.encode(skinUrl, StandardCharsets.UTF_8), useSlim ? "slim" : "steve")).toURL();
             String reply = urlRequest(url, false, null);
             return getSkinFromReply(reply);
         } catch (IOException e) {