diff --git a/src/checkers/gitlab.py b/src/checkers/gitlab.py
index efbd14f..4371012 100644
--- a/src/checkers/gitlab.py
+++ b/src/checkers/gitlab.py
@@ -20,4 +20,4 @@ def _(self, username:str) -> str|None:
             if r.status_code == 429:
                 time.sleep(self.RATELIMIT_TIMEOUT)
         
-        return username if r.json()['exists'] == False else None
\ No newline at end of file
+        return username if r.json()["exists"] == False else None
\ No newline at end of file
diff --git a/src/checkers/instagram.py b/src/checkers/instagram.py
index a7e1f78..ae8e77f 100644
--- a/src/checkers/instagram.py
+++ b/src/checkers/instagram.py
@@ -13,8 +13,8 @@ class Checker(BaseChecker):
 
     @BaseChecker.check.register
     def _(self, username:str) -> str|None:
-        headers = {'X-CSRFToken': 'en'}
-        payload = {'email': '', 'username': username, 'first_name': '', 'opt_into_one_tap': False}
+        headers = {"X-CSRFToken": "en"}
+        payload = {"email": "", "username": username, "first_name": "", "opt_into_one_tap": False}
         
         r = Response(429)
         while r.status_code == 429:
@@ -23,4 +23,4 @@ def _(self, username:str) -> str|None:
             if r.status_code == 429:
                 time.sleep(self.RATELIMIT_TIMEOUT)
         
-        return username if not '"username": [{"message": ' in r.text else None
\ No newline at end of file
+        return username if not "\"username\": [{\"message\": " in r.text else None
\ No newline at end of file
diff --git a/src/checkers/kahoot.py b/src/checkers/kahoot.py
index beb1139..8cdd1a4 100644
--- a/src/checkers/kahoot.py
+++ b/src/checkers/kahoot.py
@@ -13,7 +13,7 @@ class Checker(BaseChecker):
 
     @BaseChecker.check.register
     def _(self, username:str) -> str|None:
-        headers={'x-kahoot-user-identifier': username}
+        headers={"x-kahoot-user-identifier": username}
 
         r = Response(429)
         while r.status_code == 429:
@@ -22,4 +22,4 @@ def _(self, username:str) -> str|None:
             if r.status_code == 429:
                 time.sleep(self.RATELIMIT_TIMEOUT)
         
-        return username if r.json().get('isUsernameAvailable') else None
\ No newline at end of file
+        return username if r.json().get("isUsernameAvailable") else None
\ No newline at end of file
diff --git a/src/checkers/speedrun-com.py b/src/checkers/speedrun-com.py
index c9779bc..455f21a 100644
--- a/src/checkers/speedrun-com.py
+++ b/src/checkers/speedrun-com.py
@@ -13,7 +13,7 @@ class Checker(BaseChecker):
 
     @BaseChecker.check.register
     def _(self, username:str) -> str|None:
-        payload = {'areaId': '', 'email': 'email@example.com', 'name': username, 'password': 'realpassword123'}
+        payload = {"areaId": "", "email": "email@example.com", "name": username, "password": "realpassword123"}
         
         r = Response(429)
         while r.status_code == 429:
diff --git a/src/checkers/twitch.py b/src/checkers/twitch.py
index 0985ec7..55f0b84 100644
--- a/src/checkers/twitch.py
+++ b/src/checkers/twitch.py
@@ -13,7 +13,7 @@ class Checker(BaseChecker):
 
     @BaseChecker.check.register
     def _(self, username:str) -> str|None:
-        headers={'client-id': 'kimne78kx3ncx6brgo4mv6wki5h1ko'}
+        headers={"client-id": "kimne78kx3ncx6brgo4mv6wki5h1ko"}
         payload = [{"operationName": "UsernameValidator_User", "variables": {"username": username}, "extensions": {"persistedQuery": {"version": 1, "sha256Hash": "fd1085cf8350e309b725cf8ca91cd90cac03909a3edeeedbd0872ac912f3d660"}}}]
 
         r = Response(429)
diff --git a/update_list.py b/update_list.py
index 7d1a16f..5c2ca8f 100644
--- a/update_list.py
+++ b/update_list.py
@@ -4,7 +4,7 @@
 import glob
 
 files = sorted(glob.glob("./src/checkers/*.py", recursive=True))
-with open('README.md', 'r', encoding='utf-8') as f:
+with open("README.md", "r", encoding="utf-8") as f:
     f_text = f.read()
     md = f_text.split("<!-- Websites start -->")[0]
     md += f"<!-- Websites start -->[{len(files)} total]\n"
@@ -16,8 +16,8 @@
         website = file.split("/")[-1].removesuffix(".py").replace("-", ".").capitalize()
         md += f"\n- [{website}]({link})"
     
-    md += '\n\n<!-- Websites end -->'
+    md += "\n\n<!-- Websites end -->"
     md += f_text.split("<!-- Websites end -->")[1]
 
-with open('README.md', 'w', encoding='utf-8') as f:
+with open("README.md", "w", encoding="utf-8") as f:
     f.write(md)
\ No newline at end of file