diff --git a/test/functional/tests/security/test_compilation_flags.py b/test/functional/tests/security/test_compilation_flags.py
index 87db959..aadf5b6 100644
--- a/test/functional/tests/security/test_compilation_flags.py
+++ b/test/functional/tests/security/test_compilation_flags.py
@@ -16,30 +16,47 @@ from test_utils.filesystem.fs_item import FsItem
 @pytest.mark.os_dependent
 def test_checksec():
     """
-        title: Checking defenses enabled compilation flags.
-        description: |
-          Check if Open CAS executable file was compiled with defenses enabled compilation flags.
-        pass_criteria:
-          - For casadm script returns:
-            RELRO       STACK CANARY  NX          PIE          RPATH     RUNPATH     FILE
-            Full RELRO  Canary found  NX enabled  PIE enabled  No RPATH  No RUNPATH  /sbin/casadm.
+    title: Checking defenses enabled compilation flags.
+    description: |
+        Check if Open CAS executable file was compiled with defenses enabled compilation flags.
+    pass_criteria:
+      - For casadm script returns:
+        RELRO       STACK CANARY  NX          PIE          RPATH     RUNPATH     FILE
+        Full RELRO  Canary found  NX enabled  PIE enabled  No RPATH  No RUNPATH  /sbin/casadm.
     """
+
     with TestRun.step("Prepare checksec script"):
         checksec_path = posixpath.join(
-            TestRun.usr.working_dir,
-            "test/functional/test-framework/scripts/checksec.sh"
+            TestRun.usr.working_dir, "test/functional/test-framework/scripts/checksec.sh"
         )
         checksec = FsItem(checksec_path)
         checksec.chmod(Permissions.x, PermissionsUsers.u, PermissionSign.add)
 
     with TestRun.step("Check casadm compilation flags"):
         casadm_binary = "/sbin/casadm"
-        header_expected = ["RELRO", "STACK CANARY", "NX", "PIE", "RPATH", "RUNPATH", "FILE"]
-        binary_expected = ["Full RELRO", "Canary found", "NX enabled", "PIE enabled", "No RPATH",
-                           "No RUNPATH", casadm_binary]
+        header_expected = [
+            "RELRO",
+            "STACK CANARY",
+            "NX",
+            "PIE",
+            "RPATH",
+            "RUNPATH",
+            "FILE",
+        ]
+        binary_expected = [
+            "Full RELRO",
+            "Canary found",
+            "NX enabled",
+            "PIE enabled",
+            "No RPATH",
+            "No RUNPATH",
+            casadm_binary,
+        ]
         result_lines = TestRun.executor.run_expect_success(
-            f'{checksec_path} --file {casadm_binary}').stdout.splitlines()
+            f"{checksec_path} --file {casadm_binary}"
+        ).stdout.splitlines()
         header_found = False
+
         for line in result_lines:
             if not header_found:
                 if line.startswith("RELRO"):
@@ -47,17 +64,20 @@ def test_checksec():
                     header = line
                 continue
             # remove formatting from output
-            result = re.sub(r'\x1B\[[0-9;]*m', '', line)
+            result = re.sub(r"\x1B\[[0-9;]*m", "", line)
             break
-        header = [i.strip() for i in header.split("  ") if i != '']
+        header = [i.strip() for i in header.split("  ") if i != ""]
+
         if header != header_expected:
             TestRun.LOGGER.error(
-                'Incorrect header detected!\n'
-                f'Expected: {"  ".join(header_expected)},\n'
-                f'Actual:   {"  ".join(header)}')
-        result = [i.strip() for i in result.split("  ") if i != '']
+                "Incorrect header detected!\n"
+                f"Expected: {'  '.join(header_expected)},\n"
+                f"Actual:   {'  '.join(header)}"
+            )
+        result = [i.strip() for i in result.split("  ") if i != ""]
         if result != binary_expected:
             TestRun.LOGGER.error(
-                'Incorrect compilation flags!\n'
-                f'Expected: {"  ".join(binary_expected)},\n'
-                f'Actual:   {"  ".join(result)}')
+                "Incorrect compilation flags!\n"
+                f"Expected: {'  '.join(binary_expected)},\n"
+                f"Actual:   {'  '.join(result)}"
+            )