diff --git a/launcher-builder/src/main/java/com/skcraft/launcher/builder/PackageBuilder.java b/launcher-builder/src/main/java/com/skcraft/launcher/builder/PackageBuilder.java
index 1a48e0b..2b2e9a1 100644
--- a/launcher-builder/src/main/java/com/skcraft/launcher/builder/PackageBuilder.java
+++ b/launcher-builder/src/main/java/com/skcraft/launcher/builder/PackageBuilder.java
@@ -42,7 +42,6 @@
 import java.util.Properties;
 import java.util.jar.JarFile;
 import java.util.logging.Level;
-import java.util.regex.Pattern;
 import java.util.zip.ZipEntry;
 
 import static com.google.common.base.Preconditions.checkNotNull;
@@ -54,9 +53,6 @@
  */
 @Log
 public class PackageBuilder {
-
-    private static final Pattern TWEAK_CLASS_ARG = Pattern.compile("--tweakClass\\s+([^\\s]+)");
-
     private final Properties properties;
     private final ObjectMapper mapper;
     private ObjectWriter writer;
diff --git a/launcher/src/main/java/com/skcraft/launcher/Launcher.java b/launcher/src/main/java/com/skcraft/launcher/Launcher.java
index 6b07154..39b6e93 100644
--- a/launcher/src/main/java/com/skcraft/launcher/Launcher.java
+++ b/launcher/src/main/java/com/skcraft/launcher/Launcher.java
@@ -54,7 +54,7 @@
 @Log
 public final class Launcher {
 
-    public static final int PROTOCOL_VERSION = 2;
+    public static final int PROTOCOL_VERSION = 3;
 
     @Getter
     private final ListeningExecutorService executor = MoreExecutors.listeningDecorator(Executors.newCachedThreadPool());
diff --git a/launcher/src/main/java/com/skcraft/launcher/model/modpack/Manifest.java b/launcher/src/main/java/com/skcraft/launcher/model/modpack/Manifest.java
index 772d15d..49ec313 100644
--- a/launcher/src/main/java/com/skcraft/launcher/model/modpack/Manifest.java
+++ b/launcher/src/main/java/com/skcraft/launcher/model/modpack/Manifest.java
@@ -31,7 +31,7 @@
 @EqualsAndHashCode(callSuper = true)
 public class Manifest extends BaseManifest {
 
-    public static final int MIN_PROTOCOL_VERSION = 2;
+    public static final int MIN_PROTOCOL_VERSION = 3;
 
     private int minimumVersion;
     private URL baseUrl;