diff --git a/git_repository.py b/git_repository.py
index f891646..0622e9f 100644
--- a/git_repository.py
+++ b/git_repository.py
@@ -17,7 +17,8 @@ class GitRepository():
         return inst
 
     def get_latest_commit(self):
-        self.latest_commit = self.system_repository.run_checked('git', 'log', '--oneline', '--format="%s %b"', '-n' + '1')
+        self.system_repository.run_checked('git', 'log', '--oneline', '--format="%s %b"', '-n' + '1')
+        self.latest_commit = self.system_repository.stdout
 
     def get_release_type_from_latest_commit(self):
         if self.latest_commit is None:
@@ -34,6 +35,9 @@ class GitRepository():
         else:
             return None
 
+    def tag_annotated(self, annotation: str, message: str):
+        self.system_repository.run_checked('git', 'tag', '-a', annotation, '-m', message)
+
     def get_current_branch(self):
         self.system_repository.run_checked('git', 'branch', '--show-current')
 
@@ -48,4 +52,3 @@ class GitRepository():
 
     def checkout(self, branch: str):
         self.system_repository.run_checked('git', 'checkout', branch)
-