diff --git a/slpkg/upgrade.py b/slpkg/upgrade.py
index e7c671d2..8ba0502f 100644
--- a/slpkg/upgrade.py
+++ b/slpkg/upgrade.py
@@ -1,6 +1,7 @@
 #!/usr/bin/python3
 # -*- coding: utf-8 -*-
 
+import logging
 from typing import Generator
 from packaging.version import parse, InvalidVersion
 
@@ -23,6 +24,7 @@ class Upgrade(Configs):
         self.repo_for_binaries: bool = self.utils.is_option(self.flag_bin_repository, self.flags)
 
         self.all_installed: list = self.utils.installed_package_names
+        logging.basicConfig(filename='slpkg_upgrade.log', encoding='utf-8', level=logging.DEBUG)
 
     def packages(self) -> Generator[str, None, None]:
         """ Returns the upgradable packages. """
@@ -64,7 +66,7 @@ class Upgrade(Configs):
 
             if parse(repo_version) == parse(inst_version) and parse(repo_build) > parse(inst_build):
                 return True
-        except InvalidVersion:
-            pass
+        except InvalidVersion as err:
+            logging.debug(err)
 
         return False