diff --git a/Pipfile b/Pipfile
index 2302a72..1e6cdf3 100644
--- a/Pipfile
+++ b/Pipfile
@@ -27,6 +27,7 @@ aiofiles = "*"
 coverage = "*"
 pytest = "*"
 pytest-asyncio = "*"
+flake8 = "*"
 
 [requires]
 python_version = "3.10"
diff --git a/Pipfile.lock b/Pipfile.lock
index 1818a97..d49506f 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "b5be758b4e3beeea1b5552ecb2fcb275e660a7ba8f0c8f7f8afb1d0a877aa73b"
+            "sha256": "5764345626b30779222e0a592f2ab91ce0938823d1baa12a4168ceed03a95170"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -299,7 +299,7 @@
                 "sha256:2857e29ff0d34db842cd7ca3230549d1a697f96ee6d3fb071cfa6c7393832597",
                 "sha256:6881edbebdb17b39b4eaaa821b438bf6eddffb4468cf344f09f89def34a8b1df"
             ],
-            "markers": "python_full_version >= '3.5.0'",
+            "markers": "python_version >= '3.5'",
             "version": "==2.0.12"
         },
         "click": {
@@ -331,7 +331,7 @@
                 "sha256:0f7569a4a6ff151958b64304071d370daa3243d15941a7beedf0c9fe5105603e",
                 "sha256:a851e51367fb93e9e1361732c1d60dab63eff98712e503ea7d92e6eccb109b4f"
             ],
-            "markers": "python_version >= '3.6' and python_version < '4.0'",
+            "markers": "python_version >= '3.6' and python_full_version < '4.0.0'",
             "version": "==2.2.1"
         },
         "ecdsa": {
@@ -544,7 +544,7 @@
                 "sha256:84d9dd047ffa80596e0f246e2eab0b391788b0503584e8945f2368256d2735ff",
                 "sha256:9d643ff0a55b762d5cdb124b8eaa99c66322e2157b69160bc32796e824360e6d"
             ],
-            "markers": "python_full_version >= '3.5.0'",
+            "markers": "python_version >= '3.5'",
             "version": "==3.3"
         },
         "jinja2": {
@@ -922,18 +922,18 @@
         },
         "redis": {
             "hashes": [
-                "sha256:69d05fac17bf3f43937afbb775c536eb516bd21355a4f17d59a966f4a531ce71",
-                "sha256:fe45513881229dbee610620b9e0817b1f48c47ba635870320fd44a712204bbdd"
+                "sha256:0107dc8e98a4f1d1d4aa00100e044287f77121a1e6d2085545c4b7fa94a7a27f",
+                "sha256:4e95f4ec5f49e636efcf20061a5a9110c20852f607cfca6865c07aaa8a739ee2"
             ],
             "index": "pypi",
-            "version": "==4.2.1"
+            "version": "==4.2.2"
         },
         "rsa": {
             "hashes": [
                 "sha256:5c6bd9dc7a543b7fe4304a631f8a8a3b674e2bbfc49c2ae96200cdbe55df6b17",
                 "sha256:95c5d300c4e879ee69708c428ba566c59478fd653cc3a22243eeb8ed846950bb"
             ],
-            "markers": "python_version >= '3.6' and python_version < '4.0'",
+            "markers": "python_version >= '3.6' and python_full_version < '4.0.0'",
             "version": "==4.8"
         },
         "sentry-sdk": {
@@ -946,11 +946,11 @@
         },
         "setuptools": {
             "hashes": [
-                "sha256:41aface2e85b517c3a466b4689b8055c02cd2e623461f09af7d93f3da65c4709",
-                "sha256:88fafba4abc2f047e08a188fd4bbc10b0e464592c37b514c19f8f8f88d94450b"
+                "sha256:7999cbd87f1b6e1f33bf47efa368b224bed5e27b5ef2c4d46580186cbcb1a86a",
+                "sha256:a65e3802053e99fc64c6b3b29c11132943d5b8c8facbcc461157511546510967"
             ],
             "markers": "python_version >= '3.7'",
-            "version": "==61.3.1"
+            "version": "==62.0.0"
         },
         "six": {
             "hashes": [
@@ -965,7 +965,7 @@
                 "sha256:471b71698eac1c2112a40ce2752bb2f4a4814c22a54a3eed3676bc0f5ca9f663",
                 "sha256:c4666eecec1d3f50960c6bdf61ab7bc350648da6c126e3cf6898d8cd4ddcd3de"
             ],
-            "markers": "python_full_version >= '3.5.0'",
+            "markers": "python_version >= '3.5'",
             "version": "==1.2.0"
         },
         "sqlalchemy": {
@@ -1031,7 +1031,7 @@
                 "sha256:44ece4d53fb1706f667c9bd1c648f5469a2ec925fcf3a776667042d645472c14",
                 "sha256:aabaf16477806a5e1dd19aa41f8c2b7950dd3c746362d7e3223dbe6de6ac448e"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4' and python_version < '4.0'",
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4' and python_full_version < '4.0.0'",
             "version": "==1.26.9"
         },
         "uvicorn": {
@@ -1331,6 +1331,14 @@
             "index": "pypi",
             "version": "==6.3.2"
         },
+        "flake8": {
+            "hashes": [
+                "sha256:479b1304f72536a55948cb40a32dce8bb0ffe3501e26eaf292c7e60eb5e0428d",
+                "sha256:806e034dda44114815e23c16ef92f95c91e4c71100ff52813adf7132a6ad870d"
+            ],
+            "index": "pypi",
+            "version": "==4.0.1"
+        },
         "iniconfig": {
             "hashes": [
                 "sha256:011e24c64b7f47f6ebd835bb12a743f2fbe9a26d4cecaa7f53bc4f35ee9da8b3",
@@ -1338,6 +1346,13 @@
             ],
             "version": "==1.1.1"
         },
+        "mccabe": {
+            "hashes": [
+                "sha256:ab8a6258860da4b6677da4bd2fe5dc2c659cff31b3ee4f7f5d64e79735b80d42",
+                "sha256:dd8d182285a0fe56bace7f45b5e7d1a6ebcbf524e8f3bd87eb0f125271b8831f"
+            ],
+            "version": "==0.6.1"
+        },
         "packaging": {
             "hashes": [
                 "sha256:dd47c42927d89ab911e606518907cc2d3a1f38bbd026385970643f9c5b8ecfeb",
@@ -1362,6 +1377,22 @@
             "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
             "version": "==1.11.0"
         },
+        "pycodestyle": {
+            "hashes": [
+                "sha256:720f8b39dde8b293825e7ff02c475f3077124006db4f440dcbc9a20b76548a20",
+                "sha256:eddd5847ef438ea1c7870ca7eb78a9d47ce0cdb4851a5523949f2601d0cbbe7f"
+            ],
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
+            "version": "==2.8.0"
+        },
+        "pyflakes": {
+            "hashes": [
+                "sha256:05a85c2872edf37a4ed30b0cce2f6093e1d0581f8c19d7393122da7e25b2b24c",
+                "sha256:3bb3a3f256f4b7968c9c788781e4ff07dce46bdf12339dcda61053375426ee2e"
+            ],
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
+            "version": "==2.4.0"
+        },
         "pyparsing": {
             "hashes": [
                 "sha256:18ee9022775d270c55187733956460083db60b37d0d0fb357445f3094eed3eea",
diff --git a/classquiz/__init__.py b/classquiz/__init__.py
index 401437b..c955131 100644
--- a/classquiz/__init__.py
+++ b/classquiz/__init__.py
@@ -41,8 +41,6 @@ async def shutdown() -> None:
         await database_.disconnect()
 
 
-
-
 app.include_router(users.router, tags=["users"], prefix="/api/v1/users")
 app.include_router(quiz.router, tags=["quiz"], prefix="/api/v1/quiz")
 app.include_router(utils.router, tags=["utils"], prefix="/api/v1/utils")