diff --git a/stubs/psycopg2/psycopg2/_psycopg.pyi b/stubs/psycopg2/psycopg2/_psycopg.pyi
index 45cdead90..8b17946bb 100644
--- a/stubs/psycopg2/psycopg2/_psycopg.pyi
+++ b/stubs/psycopg2/psycopg2/_psycopg.pyi
@@ -138,7 +138,7 @@ class cursor:
     def fetchall(self) -> list[tuple[Any, ...]]: ...
     def fetchmany(self, size: int | None = None) -> list[tuple[Any, ...]]: ...
     def fetchone(self) -> tuple[Any, ...] | None: ...
-    def mogrify(self, query: str | bytes, vars: _Vars | None = None) -> bytes: ...
+    def mogrify(self, query: str | bytes | Composable, vars: _Vars | None = None) -> bytes: ...
     def nextset(self) -> NoReturn: ...  # not supported
     def scroll(self, value: int, mode: Literal["absolute", "relative"] = "relative") -> None: ...
     def setinputsizes(self, sizes: Unused) -> None: ...