diff --git a/git_redmine.py b/git_redmine.py
index ff44e64..6080396 100644
--- a/git_redmine.py
+++ b/git_redmine.py
@@ -208,10 +208,10 @@ def take(issue_number, reference):
     else:
         new = True
         default_branch_name = 'wip/%s-%s' % (issue_number, slugify(issue.subject)[:32])
-        click.confirm('Do you want to create a branch tracking %s ?' % (reference or 'origin/master'),
+        click.confirm('Do you want to create a branch tracking %s ?' % (reference or 'origin/main'),
                       default=True, abort=True)
         branch_name = click.prompt('Branch name', default=default_branch_name)
-        branch = repo.create_head(branch_name, commit=reference or 'origin/master')
+        branch = repo.create_head(branch_name, commit=reference or 'origin/main')
         set_branch_option(repo, branch, 'merge', 'refs/heads/main')
         set_branch_option(repo, branch, 'remote', '.')
     if repo.head.reference == branch:
@@ -270,7 +270,7 @@ def submit(ctx, issue, no_rebase, number_of_commits):
     api = get_redmine_api()
     kwargs = {}
     repo = get_repo()
-    for commit in list(get_commits(repo, 'master'))[:number_of_commits]:
+    for commit in list(get_commits(repo, 'main'))[:number_of_commits]:
         if ('#%s' % get_current_issue()) not in commit.message:
             click.echo(click.style('Missing commit number in commit message', fg='red'))
             click.echo()
@@ -351,7 +351,7 @@ def get_commits(repo, ref):
 @redmine.command(name='merge-and-push')
 @click.option('--issue', default=None, type=int)
 @click.option('--validate-msg/--no-validate-msg', default=True)
-@click.argument('target_branch', default='master')
+@click.argument('target_branch', default='main')
 def merge_and_push(issue, validate_msg, target_branch):
     issue = get_issue(issue or None)
     repo = get_repo()
@@ -478,7 +478,7 @@ def merge_and_push(issue, validate_msg, target_branch):
 
 
 @redmine.command(name='rebase')
-@click.argument('target_branch', default='master')
+@click.argument('target_branch', default='main')
 def rebase(target_branch):
     repo = get_repo()
     origin = repo.remote()