diff --git a/src/main/java/net/fabricmc/loom/task/UnpickJarTask.java b/src/main/java/net/fabricmc/loom/task/UnpickJarTask.java
index e27d2ff2..7f66aa61 100644
--- a/src/main/java/net/fabricmc/loom/task/UnpickJarTask.java
+++ b/src/main/java/net/fabricmc/loom/task/UnpickJarTask.java
@@ -47,7 +47,7 @@ public class UnpickJarTask extends JavaExec {
 	public UnpickJarTask() {
 		getOutputs().upToDateWhen(e -> false);
 		classpath(getProject().getConfigurations().getByName(Constants.Configurations.UNPICK_CLASSPATH));
-		setMain("daomephsta.unpick.cli.Main");
+		getMainClass().set("daomephsta.unpick.cli.Main");
 	}
 
 	@Override
diff --git a/src/main/java/net/fabricmc/loom/util/Constants.java b/src/main/java/net/fabricmc/loom/util/Constants.java
index f4d12355..faa82cda 100644
--- a/src/main/java/net/fabricmc/loom/util/Constants.java
+++ b/src/main/java/net/fabricmc/loom/util/Constants.java
@@ -99,7 +99,7 @@ public class Constants {
 		 * Constants for versions of dependencies.
 		 */
 		public static final class Versions {
-			public static final String MIXIN_COMPILE_EXTENSIONS = "0.4.4";
+			public static final String MIXIN_COMPILE_EXTENSIONS = "0.4.6";
 			public static final String DEV_LAUNCH_INJECTOR = "0.2.1+build.8";
 			public static final String TERMINAL_CONSOLE_APPENDER = "1.2.0";
 			public static final String JETBRAINS_ANNOTATIONS = "19.0.0";
diff --git a/src/main/java/net/fabricmc/loom/util/DownloadUtil.java b/src/main/java/net/fabricmc/loom/util/DownloadUtil.java
index 1da65ae5..56ccf8d3 100644
--- a/src/main/java/net/fabricmc/loom/util/DownloadUtil.java
+++ b/src/main/java/net/fabricmc/loom/util/DownloadUtil.java
@@ -26,9 +26,11 @@ package net.fabricmc.loom.util;
 
 import java.io.File;
 import java.io.IOException;
+import java.io.InputStream;
 import java.net.HttpURLConnection;
 import java.net.URL;
 import java.nio.charset.StandardCharsets;
+import java.util.zip.GZIPInputStream;
 
 import com.google.common.io.Files;
 import org.apache.commons.io.FileUtils;
@@ -110,7 +112,13 @@ public class DownloadUtil {
 		}
 
 		try { // Try download to the output
-			FileUtils.copyInputStreamToFile(connection.getInputStream(), to);
+			InputStream inputStream = connection.getInputStream();
+
+			if ("gzip".equals(connection.getContentEncoding())) {
+				inputStream = new GZIPInputStream(inputStream);
+			}
+
+			FileUtils.copyInputStreamToFile(inputStream, to);
 		} catch (IOException e) {
 			delete(to); // Probably isn't good if it fails to copy/save
 			throw e;
diff --git a/src/main/java/net/fabricmc/loom/util/HashedDownloadUtil.java b/src/main/java/net/fabricmc/loom/util/HashedDownloadUtil.java
index a03126d1..abf1a335 100644
--- a/src/main/java/net/fabricmc/loom/util/HashedDownloadUtil.java
+++ b/src/main/java/net/fabricmc/loom/util/HashedDownloadUtil.java
@@ -27,9 +27,11 @@ package net.fabricmc.loom.util;
 import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.IOException;
+import java.io.InputStream;
 import java.net.HttpURLConnection;
 import java.net.URL;
 import java.nio.charset.StandardCharsets;
+import java.util.zip.GZIPInputStream;
 
 import javax.annotation.Nullable;
 
@@ -106,7 +108,13 @@ public class HashedDownloadUtil {
 		}
 
 		try { // Try download to the output
-			FileUtils.copyInputStreamToFile(connection.getInputStream(), to);
+			InputStream inputStream = connection.getInputStream();
+
+			if ("gzip".equals(connection.getContentEncoding())) {
+				inputStream = new GZIPInputStream(inputStream);
+			}
+
+			FileUtils.copyInputStreamToFile(inputStream, to);
 		} catch (IOException e) {
 			delete(to); // Probably isn't good if it fails to copy/save
 			throw e;