diff --git a/stubs/pytz/pytz/tzinfo.pyi b/stubs/pytz/pytz/tzinfo.pyi
index 784c0a91d..336558561 100644
--- a/stubs/pytz/pytz/tzinfo.pyi
+++ b/stubs/pytz/pytz/tzinfo.pyi
@@ -13,11 +13,11 @@ class BaseTzInfo(datetime.tzinfo):
     @abstractmethod
     def normalize(self, dt: datetime.datetime) -> datetime.datetime: ...
     @abstractmethod
-    def tzname(self, dt: datetime.datetime | None) -> str: ...
+    def tzname(self, dt: datetime.datetime | None, /) -> str: ...
     @abstractmethod
-    def utcoffset(self, dt: datetime.datetime | None) -> datetime.timedelta | None: ...
+    def utcoffset(self, dt: datetime.datetime | None, /) -> datetime.timedelta | None: ...
     @abstractmethod
-    def dst(self, dt: datetime.datetime | None) -> datetime.timedelta | None: ...
+    def dst(self, dt: datetime.datetime | None, /) -> datetime.timedelta | None: ...
 
 class StaticTzInfo(BaseTzInfo):
     def fromutc(self, dt: datetime.datetime) -> datetime.datetime: ...