diff --git a/Makefile b/Makefile
index 1e69417..90398d2 100644
--- a/Makefile
+++ b/Makefile
@@ -10,7 +10,9 @@
 	EXE :=
 endif
 
-TARGET := $(DIST)/$(NAME)$(EXE)
+TARGET         := $(DIST)/$(NAME)$(EXE)
+TARGET_INSTALL := $(BIN)/$(NAME)$(EXE)
+TARGET_RENAME  := $(DIST)/$(NAME)-$(OS)-$(ARCH)$(EXE)
 
 build: $(TARGET)
 
@@ -21,23 +23,22 @@
 
 demo: $(CURDIR)/demo.gif
 
-install: $(TARGET) | $(BIN)
-	install --target-directory=$(BIN) $<
+deps: $(CURDIR)/poetry.lock $(CURDIR)/requirements.txt
+
+install: $(TARGET_INSTALL)
 
 pretty:
 	isort --profile black $(CURDIR)
 	black $(CURDIR)
 
-rename: $(TARGET)
-ifneq ($(and $(OS), $(ARCH)), )
-	mv $< $(DIST)/$(NAME)-$(OS)-$(ARCH)$(EXE)
-endif
+rename: $(TARGET_RENAME)
 
-$(TARGET):
-	pyinstaller --distpath $(DIST) --onefile --name $(NAME) $(CURDIR)/main.py
+ALWAYS:
 
-$(BIN):
-	mkdir --parents $@
+$(TARGET_INSTALL): $(TARGET)
+$(TARGET_RENAME) : $(TARGET)
+$(TARGET_INSTALL) $(TARGET_RENAME):
+	install -D --mode=u=rwx,go=rx --no-target-directory $< $@
 
 $(CURDIR)/demo.gif: $(CURDIR)/demo.tape
 ifeq ($(BW_SESSION),)
@@ -45,3 +46,12 @@
 else
 	vhs < $<
 endif
+
+$(CURDIR)/poetry.lock: ALWAYS
+	poetry lock
+
+$(CURDIR)/requirements.txt: $(CURDIR)/poetry.lock
+	poetry export --output=$@ --without-hashes --without-urls
+
+$(TARGET):
+	pyinstaller --distpath $(DIST) --onefile --name $(NAME) $(CURDIR)/main.py
diff --git a/poetry.lock b/poetry.lock
index 71a36a9..0056174 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -444,14 +444,14 @@
 
 [[package]]
 name = "setuptools"
-version = "67.6.1"
+version = "67.7.1"
 description = "Easily download, build, install, upgrade, and uninstall Python packages"
 category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
-    {file = "setuptools-67.6.1-py3-none-any.whl", hash = "sha256:e728ca814a823bf7bf60162daf9db95b93d532948c4c0bea762ce62f60189078"},
-    {file = "setuptools-67.6.1.tar.gz", hash = "sha256:257de92a9d50a60b8e22abfcbb771571fde0dbf3ec234463212027a4eeecbe9a"},
+    {file = "setuptools-67.7.1-py3-none-any.whl", hash = "sha256:6f0839fbdb7e3cfef1fc38d7954f5c1c26bf4eebb155a55c9bf8faf997b9fb67"},
+    {file = "setuptools-67.7.1.tar.gz", hash = "sha256:bb16732e8eb928922eabaa022f881ae2b7cdcfaf9993ef1f5e841a96d32b8e0c"},
 ]
 
 [package.extras]
diff --git a/thu_learn_downloader/helper.py b/thu_learn_downloader/helper.py
index 830a69b..c7cb577 100644
--- a/thu_learn_downloader/helper.py
+++ b/thu_learn_downloader/helper.py
@@ -90,15 +90,18 @@
         else:
             results = json["object"]
 
-        return list(
-            map(
-                parser.parse_file,
-                results,
-                [file_clazz] * len(results),
-                [course_id] * len(results),
-                [course_type] * len(results),
+        files: list[t.File] = [
+            parser.parse_file(
+                raw=result,
+                file_clazz=file_clazz,
+                course_id=course_id,
+                course_type=course_type,
             )
-        )
+            for result in results
+        ]
+        files.sort(key=lambda x: x.upload_time)
+
+        return files
 
     def get_homework_list(
         self, course_id: str, course_type: t.CourseType = t.CourseType.STUDENT