diff --git a/ChangeLog.txt b/ChangeLog.txt
index b60196ea..0250122e 100644
--- a/ChangeLog.txt
+++ b/ChangeLog.txt
@@ -1,3 +1,7 @@
+4.7.7 - 07/04/2023
+Updated:
+- For utilities to improve speed
+
 4.7.6 - 04/04/2023
 Fixed:
 - Upgrade packages with build numbers greater to >= 10
diff --git a/slpkg/blacklist.py b/slpkg/blacklist.py
index 242e06a6..68fb380b 100644
--- a/slpkg/blacklist.py
+++ b/slpkg/blacklist.py
@@ -25,7 +25,6 @@ class Blacklist(Configs):
 
     def packages(self) -> list:
         """ Reads the blacklist file. """
-
         if self.blacklist_file_toml.is_file():
             try:
                 with open(self.blacklist_file_toml, 'rb') as black:
diff --git a/slpkg/upgrade.py b/slpkg/upgrade.py
index 4eee8499..fc193174 100644
--- a/slpkg/upgrade.py
+++ b/slpkg/upgrade.py
@@ -26,8 +26,6 @@ class Upgrade(Configs):
         self.flag_bin_repository: list = ['-B', '--bin-repo=']
         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=str(LoggingConfig.log_file),
                             filemode='w',
                             encoding='utf-8',
@@ -41,7 +39,7 @@ class Upgrade(Configs):
             repo_packages: list = list(SBoQueries('').sbos())
 
         # Returns the matched packages between two lists.
-        packages: list = list(set(self.all_installed) & set(repo_packages))
+        packages: list = list(set(self.utils.installed_package_names) & set(repo_packages))
 
         for pkg in packages:
 
diff --git a/slpkg/utilities.py b/slpkg/utilities.py
index 4abafb42..9d2ddcb1 100644
--- a/slpkg/utilities.py
+++ b/slpkg/utilities.py
@@ -69,19 +69,8 @@ class Utilities:
 
     def all_installed_names(self) -> Generator:
         """ Return all installed packages names from /val/log/packages folder. """
-        var_log_packages = Path(self.configs.log_packages)
-
-        try:
-            for file in var_log_packages.glob(self.configs.file_pattern):
-                name = self.split_binary_pkg(file.name)[0]
-
-                if not name.startswith('.') and name not in self.black.packages():
-                    yield name
-        except ValueError as err:
-            logger = logging.getLogger(__name__)
-            logger.info('%s: %s: %s', self.__class__.__name__,
-                        Utilities.all_installed_names.__name__,
-                        err)
+        for package in self.installed_packages:
+            yield self.split_binary_pkg(package)[0]
 
     @staticmethod
     def remove_file_if_exists(path: Path, file: str) -> None: