diff --git a/github/errors.py b/github/errors.py
index 9f0ad1c..be74b18 100644
--- a/github/errors.py
+++ b/github/errors.py
@@ -20,7 +20,7 @@ class BaseHTTPError(GitHubError):
 
 
 class HTTPError(BaseHTTPError):
-    """Raised when an HTTP request doesn't respond with a successfull code."""
+    """Raised when an HTTP request doesn't respond with a successful code."""
 
     def __init__(self, response: ClientResponse, /) -> None:
         self.method = response.method
@@ -30,7 +30,7 @@ class HTTPError(BaseHTTPError):
 
     def __str__(self) -> str:
         return (
-            f"An HTTP error with the code {self.code} has occured while trying to do a"
+            f"An HTTP error with the code {self.code} has occurred while trying to do a"
             f" {self.method} request to the URL {self.url}"
         )
 
diff --git a/github/internals/http.py b/github/internals/http.py
index 94be7ac..51e2228 100644
--- a/github/internals/http.py
+++ b/github/internals/http.py
@@ -21,7 +21,7 @@ if TYPE_CHECKING:
     from typing_extensions import Self
 
     from ..objects import File
-    from ..types import SecurtiyAndAnalysis
+    from ..types import SecurityAndAnalysis
 
 
 log = logging.getLogger("github")
@@ -371,7 +371,7 @@ class HTTPClient:
         homepage: Optional[str] = None,
         private: Optional[bool] = None,
         visibility: Optional[Literal["public", "private", "internal"]] = None,
-        security_and_analysis: Optional[SecurtiyAndAnalysis] = None,
+        security_and_analysis: Optional[SecurityAndAnalysis] = None,
         has_issues: Optional[bool] = None,
         has_projects: Optional[bool] = None,
         has_wiki: Optional[bool] = None,
diff --git a/github/types/security_and_analysis.py b/github/types/security_and_analysis.py
index dc5201a..c1a6095 100644
--- a/github/types/security_and_analysis.py
+++ b/github/types/security_and_analysis.py
@@ -1,4 +1,4 @@
-__all__ = ("SecurtiyAndAnalysis",)
+__all__ = ("SecurityAndAnalysis",)
 
 from typing import TYPE_CHECKING, Literal, TypedDict
 
@@ -18,7 +18,7 @@ class SecretScanningPushProtection(TypedDict):
     status: Literal["enabled", "disabled"]
 
 
-class SecurtiyAndAnalysis(TypedDict):
+class SecurityAndAnalysis(TypedDict):
     advanced_security: NotRequired[AdvancedSecurity]
     secret_scanning: NotRequired[SecretScanning]
     secret_scanning_push_protection: NotRequired[SecretScanningPushProtection]
diff --git a/github/utils.py b/github/utils.py
index a9f33b5..61f3ca2 100644
--- a/github/utils.py
+++ b/github/utils.py
@@ -19,7 +19,7 @@ def human_readable_time_until(td: timedelta, /) -> str:
     hours, seconds = divmod(seconds, 3600)
     minutes, seconds = divmod(seconds, 60)
 
-    return f"{hours} hours, {minutes} minues, {seconds} seconds"
+    return f"{hours} hours, {minutes} minutes, {seconds} seconds"
 
 
 def str_to_datetime(time: Optional[str], /) -> Optional[datetime]: