diff --git a/src/iac_scan_runner/api.py b/src/iac_scan_runner/api.py
index acb57574b7b17d9f50904fd8f194404094cc3503..9c29ecd2a36dce3d1e67fd85e4c35a1b72d20c38 100644
--- a/src/iac_scan_runner/api.py
+++ b/src/iac_scan_runner/api.py
@@ -13,6 +13,7 @@ from iac_scan_runner.scan_response_type import ScanResponseType
 from iac_scan_runner.scan_runner import ScanRunner
 from pydantic import SecretStr
 
+# create an API instance
 app = FastAPI(
     docs_url="/swagger",
     title="IaC Scan Runner REST API",
@@ -31,7 +32,7 @@ scan_runner.init_checks()
 def openapi_yaml() -> str:
     """
     Return OpenAPI specification as YAML string
-    @return: string with YAML
+    :return: string with YAML
     """
     openapi_json = app.openapi()
     yaml_str = io.StringIO()
@@ -44,7 +45,7 @@ def openapi_yaml() -> str:
 def get_openapi_yml() -> Response:
     """
     GET OpenAPI specification in YAML format (.yml)
-    @return: Response object
+    :return: Response object
     """
     return Response(openapi_yaml(), media_type='text/yml')
 
@@ -54,7 +55,7 @@ def get_openapi_yml() -> Response:
 def get_openapi_yaml() -> Response:
     """
     GET OpenAPI specification in YAML format (.yaml)
-    @return: Response object
+    :return: Response object
     """
     return Response(openapi_yaml(), media_type='text/yaml')
 
@@ -64,11 +65,11 @@ async def get_checks(keyword: Optional[str] = None, enabled: Optional[bool] = No
                      target_entity_type: Optional[CheckTargetEntityType] = None) -> JSONResponse:
     """
     Retrieve and filter checks (GET method)
-    @param keyword: substring for filtering
-    @param enabled: bool saying whether check is enabled or disabled
-    @param configured: bool saying whether check is configured or not
-    @param target_entity_type: CheckTargetEntityType object - IaC, component or both
-    @return: JSONResponse object (with status code 200 or 400)
+    :param keyword: substring for filtering
+    :param enabled: bool saying whether check is enabled or disabled
+    :param configured: bool saying whether check is configured or not
+    :param target_entity_type: CheckTargetEntityType object - IaC, component or both
+    :return: JSONResponse object (with status code 200 or 400)
     """
     try:
         filtered_checks = scan_runner.iac_checks.values()
@@ -94,8 +95,8 @@ async def get_checks(keyword: Optional[str] = None, enabled: Optional[bool] = No
 async def put_enable_checks(check_name: str) -> JSONResponse:
     """
     Enable check for running (PUT method)
-    @param check_name: Unique name of check to be enabled
-    @return: JSONResponse object (with status code 200 or 400)
+    :param check_name: Unique name of check to be enabled
+    :return: JSONResponse object (with status code 200 or 400)
     """
     try:
         return JSONResponse(status_code=status.HTTP_200_OK, content=scan_runner.enable_check(check_name))
@@ -108,8 +109,8 @@ async def put_enable_checks(check_name: str) -> JSONResponse:
 async def put_disable_checks(check_name: str) -> JSONResponse:
     """
     Disable check for running (PUT method)
-    @param check_name: Unique name of check to be disabled
-    @return: JSONResponse object (with status code 200 or 400)
+    :param check_name: Unique name of check to be disabled
+    :return: JSONResponse object (with status code 200 or 400)
     """
     try:
         return JSONResponse(status_code=status.HTTP_200_OK, content=scan_runner.disable_check(check_name))
@@ -127,10 +128,10 @@ async def put_configure_check(check_name: str,
                                                                                    'etc.)')) -> JSONResponse:
     """
     Configure check for running (PUT method)
-    @param check_name: Unique name of check to be configured
-    @param config_file: Check configuration file
-    @param secret: Secret needed for configuration (e.g., API key, token, password, cloud credentials, etc.)
-    @return: JSONResponse object (with status code 200 or 400)
+    :param check_name: Unique name of check to be configured
+    :param config_file: Check configuration file
+    :param secret: Secret needed for configuration (e.g., API key, token, password, cloud credentials, etc.)
+    :return: JSONResponse object (with status code 200 or 400)
     """
     try:
         return JSONResponse(status_code=status.HTTP_200_OK,
@@ -147,10 +148,10 @@ async def post_scan(iac: UploadFile = File(..., description='IaC file (zip or ta
                     scan_response_type: ScanResponseType = ScanResponseType.json) -> Union[JSONResponse, HTMLResponse]:
     """
     Run IaC scan (POST method)
-    @param iac: IaC file (zip or tar compressed) that will be scanned'
-    @param checks: List of selected checks to be executed on IaC
-    @param scan_response_type: Scan response type (JSON or HTML)
-    @return: JSONResponse or HTMLResponse object (with status code 200 or 400)
+    :param iac: IaC file (zip or tar compressed) that will be scanned'
+    :param checks: List of selected checks to be executed on IaC
+    :param scan_response_type: Scan response type (JSON or HTML)
+    :return: JSONResponse or HTMLResponse object (with status code 200 or 400)
     """
     try:
         if not checks or checks == ['']:
diff --git a/src/iac_scan_runner/check.py b/src/iac_scan_runner/check.py
index ef236bd82203a3a15c13848e2af5a9662bc19acc..45c8c99aff23eaed4c866f90d9793d97d122702f 100644
--- a/src/iac_scan_runner/check.py
+++ b/src/iac_scan_runner/check.py
@@ -11,9 +11,9 @@ class Check(ABC):
                  target_entity_type: Optional[CheckTargetEntityType] = None):
         """
         Initialize new IaC check
-        @param name: Name of the check
-        @param description: Check description
-        @param target_entity_type: CheckTargetEntityType object - IaC, component or both
+        :param name: Name of the check
+        :param description: Check description
+        :param target_entity_type: CheckTargetEntityType object - IaC, component or both
         """
         self.name = name
         self.description = description
@@ -25,8 +25,8 @@ class Check(ABC):
     def configure(self, config_filename: Optional[str], secret: Optional[SecretStr]):
         """
         Initiate check configuration (override this method if configuration is needed)
-        @param config_filename: Name of the check configuration file
-        @param secret: Secret needed for configuration (e.g. API key, token, password, cloud credentials, etc.)
+        :param config_filename: Name of the check configuration file
+        :param secret: Secret needed for configuration (e.g. API key, token, password, cloud credentials, etc.)
         """
         pass
 
@@ -34,7 +34,7 @@ class Check(ABC):
     def run(self, directory: str) -> CheckOutput:
         """
         Initiate check run (this method has to be implemented for every subclass)
-        @param directory: Target directory where the check will be executed
-        @return: CheckOutput object
+        :param directory: Target directory where the check will be executed
+        :return: CheckOutput object
         """
         pass
diff --git a/src/iac_scan_runner/check_output.py b/src/iac_scan_runner/check_output.py
index 995448bccfac5a5f468c2a8f470493f6a5795be7..5f8fabfe7702320bf24bfd630d3351c20a27f702 100644
--- a/src/iac_scan_runner/check_output.py
+++ b/src/iac_scan_runner/check_output.py
@@ -2,8 +2,8 @@ class CheckOutput:
     def __init__(self, output: str, rc: int):
         """
         Initialize new IaC check output
-        @param output: Returned check output
-        @param rc: Check return code
+        :param output: Returned check output
+        :param rc: Check return code
         """
         self.output = output
         self.rc = rc
@@ -11,13 +11,13 @@ class CheckOutput:
     def to_dict(self) -> dict:
         """
         Transform CheckOutput object to dict (for JSON response)
-        @return: dict with check output and return code
+        :return: dict with check output and return code
         """
         return {"output": self.output, "rc": self.rc}
 
     def to_string(self) -> str:
         """
         Transform CheckOutput object to string (for HTML response)
-        @return: string with result for check output
+        :return: string with result for check output
         """
         return f'Return code: {self.rc}\nOutput: {self.output}'
diff --git a/src/iac_scan_runner/cli.py b/src/iac_scan_runner/cli.py
index 29d692ba43ad663819b10ad74b11949898397fee..c828d88d3e05d36688b696abfeaa420191534b75 100644
--- a/src/iac_scan_runner/cli.py
+++ b/src/iac_scan_runner/cli.py
@@ -22,8 +22,8 @@ def openapi(
         output: str = typer.Option(None, "--output", "-o", help="Output file path")):
     """
     Get OpenAPI specification
-    @param output_format: OpenAPI output format (JSON or YAML)
-    @param output: Output file path name, where OpenAPI specification will be written to
+    :param output_format: OpenAPI output format (JSON or YAML)
+    :param output: Output file path name, where OpenAPI specification will be written to
     """
     try:
         if output_format == OpenApiFormat.json:
diff --git a/src/iac_scan_runner/scan_runner.py b/src/iac_scan_runner/scan_runner.py
index 4d69b53f23cc66b0e3c97cf70c79a7461dcc49ed..f6358cb1d1e700927e892bd09efdae1883f3f959 100644
--- a/src/iac_scan_runner/scan_runner.py
+++ b/src/iac_scan_runner/scan_runner.py
@@ -93,7 +93,7 @@ class ScanRunner:
     def _init_iac_dir(self, iac_file: UploadFile):
         """
         Initiate new unique IaC directory for scanning
-        @param iac_file: IaC file
+        :param iac_file: IaC file
         """
         try:
             iac_filename_local = generate_random_pathname(iac_file.filename)
@@ -115,9 +115,9 @@ class ScanRunner:
     def _run_checks(self, selected_checks: Optional[List], scan_response_type: ScanResponseType) -> Union[dict, str]:
         """
         Run the specified IaC checks
-        @param selected_checks: List of selected checks to be executed on IaC
-        @param scan_response_type: Scan response type (JSON or HTML)
-        @return: Dict or string with output for running checks
+        :param selected_checks: List of selected checks to be executed on IaC
+        :param scan_response_type: Scan response type (JSON or HTML)
+        :return: Dict or string with output for running checks
         """
         if scan_response_type == ScanResponseType.json:
             scan_output = {}
@@ -146,8 +146,8 @@ class ScanRunner:
     def enable_check(self, check_name: str) -> str:
         """
         Enables the specified check and makes it available to be used
-        @param check_name: Name of the check
-        @return: String with result for enabling check
+        :param check_name: Name of the check
+        :return: String with result for enabling check
         """
         if check_name in self.iac_checks.keys():
             check = self.iac_checks[check_name]
@@ -162,8 +162,8 @@ class ScanRunner:
     def disable_check(self, check_name: str) -> str:
         """
         Disables the specified check and makes it unavailable to be used
-        @param check_name: Name of the check
-        @return: String with result for disabling check
+        :param check_name: Name of the check
+        :return: String with result for disabling check
         """
         if check_name in self.iac_checks.keys():
             check = self.iac_checks[check_name]
@@ -178,10 +178,10 @@ class ScanRunner:
     def configure_check(self, check_name: str, config_file: Optional[UploadFile], secret: Optional[SecretStr]) -> str:
         """
         Configures the selected check with the supplied optional configuration file or/and secret
-        @param check_name: Name of the check
-        @param config_file: Check configuration file
-        @param secret: Secret needed for configuration (e.g. API key, token, password etc.)
-        @return: String with check configuration output
+        :param check_name: Name of the check
+        :param config_file: Check configuration file
+        :param secret: Secret needed for configuration (e.g. API key, token, password etc.)
+        :return: String with check configuration output
         """
         if check_name in self.iac_checks.keys():
             check = self.iac_checks[check_name]
@@ -203,10 +203,10 @@ class ScanRunner:
     def scan_iac(self, iac_file: UploadFile, checks: List, scan_response_type: ScanResponseType) -> Union[dict, str]:
         """
         Run IaC scanning process (initiate IaC dir, run checks and cleanup IaC dir)
-        @param iac_file: IaC file that will be scanned
-        @param checks: List of selected checks to be executed on IaC
-        @param scan_response_type: Scan response type (JSON or HTML)
-        @return: Dict or string with scan result
+        :param iac_file: IaC file that will be scanned
+        :param checks: List of selected checks to be executed on IaC
+        :param scan_response_type: Scan response type (JSON or HTML)
+        :return: Dict or string with scan result
         """
         nonexistent_checks = list(set(checks) - set(
             map(lambda check: check.name,
diff --git a/src/iac_scan_runner/utils.py b/src/iac_scan_runner/utils.py
index 9abf9d04c3a30228b4ad21953420ad7c9154f028..3f078c6160560b64390774f7dbf79bcc46afcb07 100644
--- a/src/iac_scan_runner/utils.py
+++ b/src/iac_scan_runner/utils.py
@@ -12,9 +12,9 @@ from iac_scan_runner.check_output import CheckOutput
 def run_command(command: str, directory: str = ".") -> CheckOutput:
     """
     Run command with arguments in directory and return the output and return code
-    @param command: A command to run
-    @param directory: Target directory where the command will be executed (default is current dir)
-    @return: CheckOutput object
+    :param command: A command to run
+    :param directory: Target directory where the command will be executed (default is current dir)
+    :return: CheckOutput object
     """
     try:
         return CheckOutput(check_output(command, cwd=directory, shell=True, stderr=STDOUT).decode('utf-8'), 0)
@@ -25,8 +25,8 @@ def run_command(command: str, directory: str = ".") -> CheckOutput:
 def determine_archive_format(archive_path: str) -> str:
     """
     Figures out the format of the supplied archive file
-    @param archive_path: Path to the archive file
-    @return: String with archive format (zip or tar)
+    :param archive_path: Path to the archive file
+    :return: String with archive format (zip or tar)
     """
     if is_zipfile(archive_path):
         return "zip"
@@ -41,9 +41,9 @@ def determine_archive_format(archive_path: str) -> str:
 def generate_random_pathname(prefix: str = "", suffix: str = "") -> str:
     """
     Creates a unique random pathname and select last 6 characters
-    @param prefix: Pathname prefix
-    @param suffix: Pathname suffix
-    @return: String with random pathname
+    :param prefix: Pathname prefix
+    :param suffix: Pathname suffix
+    :return: String with random pathname
     """
     pathname = prefix + str(uuid4().hex)[-6:] + suffix
     if path.exists(pathname):
@@ -55,9 +55,9 @@ def generate_random_pathname(prefix: str = "", suffix: str = "") -> str:
 def unpack_archive_to_dir(archive_path: str, output_dir: Optional[str]) -> str:
     """
     Unpacks archive to a specified directory
-    @param archive_path: Path to the archive file
-    @param output_dir: Directory where IaC will be unpacked to
-    @return: String output dir name
+    :param archive_path: Path to the archive file
+    :param output_dir: Directory where IaC will be unpacked to
+    :return: String output dir name
     """
     try:
         if not output_dir: