diff --git a/.bumpversion.cfg b/.bumpversion.cfg
deleted file mode 100644
index dfffab7..0000000
--- a/.bumpversion.cfg
+++ /dev/null
@@ -1,6 +0,0 @@
-[bumpversion]
-current_version = 0.4.2
-commit = True
-tag = True
-
-[bumpversion:file:src/shecan/__init__.py]
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index b7fc5a3..651c437 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -23,4 +23,4 @@ jobs:
               with:
                 name: dist
                 path: dist/
-                retention-days: 5
\ No newline at end of file
+                retention-days: 5
diff --git a/pyproject.toml b/pyproject.toml
index 0fe45bb..a72dcb8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "shecan"
-version = "0.4.2"
+version = "0.4.3"
 description = "The Shecan CLI is used to configure your DNS configuration based on Shecan website from the command line."
 readme = "README.md"
 authors = [
@@ -78,4 +78,4 @@ select = [
   "PLR0904", # Ignores "Too many public methods"
   "PLR0913", # Ignores "Too many arguments to function call"
   "PLR0917", # Ignores "Too many positional arguments" 
-]
\ No newline at end of file
+]
diff --git a/src/shecan/__init__.py b/src/shecan/__init__.py
index 328d8c4..9a6fea0 100644
--- a/src/shecan/__init__.py
+++ b/src/shecan/__init__.py
@@ -1,9 +1,3 @@
-"""
-Shecan CLI
-~~~~~~~~~~~~~~~~~~~~~
-The Shecan CLI https://shecan.ir
-"""
-
 from .api import current_dns, list_dns, update
 from .utils import get_shecan_ips as get_ips
 
@@ -14,4 +8,4 @@
     "update",
 ]
 
-version = "0.4.2"
+version = "0.4.3"
diff --git a/src/shecan/api.py b/src/shecan/api.py
index 23136e9..a43b4a5 100644
--- a/src/shecan/api.py
+++ b/src/shecan/api.py
@@ -1,9 +1,3 @@
-"""
-shecan.api
-~~~~~~~~~~~~
-This module implements Main API for shecan-cli project..
-"""
-
 import sys
 from typing import NamedTuple
 
diff --git a/src/shecan/cli.py b/src/shecan/cli.py
index 6ac8a64..55821b5 100644
--- a/src/shecan/cli.py
+++ b/src/shecan/cli.py
@@ -42,7 +42,7 @@ def update_resolv_file(content: list[str]) -> None:
     try:
         shutil.copy(resolv_file, tmp_resolv_file)
     except FileNotFoundError:
-        logger.warn(f"Resolv file not found ({resolv_file!s}).")
+        logger.warning(f"Resolv file not found ({resolv_file!s}).")
     except OSError as e:
         logger.error(
             f"Could not move resolv file ({resolv_file!s}) to "
@@ -140,7 +140,7 @@ def shecan_cli() -> Optional[int]:
 
     args = parser.parse_args()
 
-    if len(sys.argv) == 1:
+    if len(sys.argv) == 1 or not hasattr(args, "op"):
         parser.print_help(sys.stderr)
         return 1
 
diff --git a/src/tests/func/__init__.py b/src/tests/__init__.py
similarity index 100%
rename from src/tests/func/__init__.py
rename to src/tests/__init__.py
diff --git a/src/tests/unit/test_alaki.py b/src/tests/test_alaki.py
similarity index 100%
rename from src/tests/unit/test_alaki.py
rename to src/tests/test_alaki.py
diff --git a/src/tests/unit/__init__.py b/src/tests/unit/__init__.py
deleted file mode 100644
index e69de29..0000000