diff --git a/stubs/psycopg2/psycopg2/_psycopg.pyi b/stubs/psycopg2/psycopg2/_psycopg.pyi
index 45d62c52d..dd2150819 100644
--- a/stubs/psycopg2/psycopg2/_psycopg.pyi
+++ b/stubs/psycopg2/psycopg2/_psycopg.pyi
@@ -496,7 +496,7 @@ def get_wait_callback(*args, **kwargs): ...
 def libpq_version(*args, **kwargs): ...
 def new_array_type(oids, name, baseobj): ...
 def new_type(oids, name, castobj): ...
-def parse_dsn(*args, **kwargs): ...
+def parse_dsn(dsn: str | bytes) -> dict[str, Any]: ...
 def quote_ident(*args, **kwargs): ...
 def register_type(*args, **kwargs): ...
 def set_wait_callback(_none): ...
diff --git a/stubs/psycopg2/psycopg2/extras.pyi b/stubs/psycopg2/psycopg2/extras.pyi
index fdd7cf429..edd63870b 100644
--- a/stubs/psycopg2/psycopg2/extras.pyi
+++ b/stubs/psycopg2/psycopg2/extras.pyi
@@ -31,9 +31,9 @@ from .extensions import connection as _connection, cursor as _cursor, quote_iden
 class DictCursorBase(_cursor):
     row_factory: Any
     def __init__(self, *args, **kwargs) -> None: ...
-    def fetchone(self): ...
-    def fetchmany(self, size: Any | None = ...): ...
-    def fetchall(self): ...
+    def fetchone(self) -> tuple[Any, ...] | None: ...
+    def fetchmany(self, size: int | None = ...) -> list[tuple[Any, ...]]: ...
+    def fetchall(self) -> list[tuple[Any, ...]]: ...
     def __iter__(self): ...
 
 class DictConnection(_connection):
@@ -79,9 +79,9 @@ class NamedTupleCursor(_cursor):
     def execute(self, query, vars: Any | None = ...): ...
     def executemany(self, query, vars): ...
     def callproc(self, procname, vars: Any | None = ...): ...
-    def fetchone(self): ...
-    def fetchmany(self, size: Any | None = ...): ...
-    def fetchall(self): ...
+    def fetchone(self) -> tuple[Any, ...] | None: ...
+    def fetchmany(self, size: int | None = ...) -> list[tuple[Any, ...]]: ...
+    def fetchall(self) -> list[tuple[Any, ...]]: ...
     def __iter__(self): ...
 
 class LoggingConnection(_connection):