diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/download/forge/ForgeNewInstallTask.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/download/forge/ForgeNewInstallTask.java
index 2e9f51f92..8dc7f8a9f 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/download/forge/ForgeNewInstallTask.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/download/forge/ForgeNewInstallTask.java
@@ -1,3 +1,20 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2019  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 package org.jackhuang.hmcl.download.forge;
 
 import org.jackhuang.hmcl.download.DefaultDependencyManager;
diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/game/Artifact.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/game/Artifact.java
index 34419f2b2..3fe42e943 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/game/Artifact.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/game/Artifact.java
@@ -1,3 +1,20 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2019  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 package org.jackhuang.hmcl.game;
 
 import com.google.gson.*;