diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8391eea44..7f1940911 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 [comment]: # (Add changes below)
 
+
 ## [Unreleased] - 0.10.0a1
 ### Main dependencies updated
 - torch 1.9.0
diff --git a/update_changelog.py b/update_changelog.py
index 1c24b6da7..e0cdf2c89 100644
--- a/update_changelog.py
+++ b/update_changelog.py
@@ -130,7 +130,7 @@ def get_latest_pull_request_id(log_data):
 
 def load_changelogs():
     change_log = open("CHANGELOG.md", "r").read()
-    with open("CHANGELOG_backup.md") as f:
+    with open("CHANGELOG_backup.md", "w") as f:
         f.write(change_log)
     changelogs_head, changelog_body = change_log.split(
         "[comment]: # (Add changes below)"
@@ -164,13 +164,13 @@ def update_changelog_file(markdown_update_text):
     "--start_pr",
     default=None,
     type=int,
-    help="Id of the pr to start the collection of PRs looking backward in time. This should be a bigger than the value of --end_pr.",
+    help="Id of the pr to start the collection of PRs looking backward in time. This should be a smaller than the value of --end_pr.",
 )
 parser.add_argument(
     "--end_pr",
     default=None,
     type=int,
-    help="Id of the pr to end the collection of PRslooking backward in time. This sould be smaller than the value of --start_pr",
+    help="Id of the pr to end the collection of PRslooking backward in time. This sould be bigger than the value of --start_pr",
 )
 
 if __name__ == "__main__":