diff --git a/slpkg/install_data.py b/slpkg/install_data.py
index f903f524..eeda2c7a 100644
--- a/slpkg/install_data.py
+++ b/slpkg/install_data.py
@@ -40,7 +40,7 @@ class InstallData(Configs):
 
         last_update_json[repo]: dict = last_date
         if self.repos.last_update_json.is_file():
-            last_update_json: dict = json.loads(self.repos.last_update_json.read_text(encoding='utf-8'))
+            last_update_json: dict = self.utils.read_json_file(self.repos.last_update_json)
             last_update_json[repo] = last_date
 
         self.repos.last_update_json.write_text(json.dumps(last_update_json, indent=4))