diff --git a/stubs/parsimonious/@tests/stubtest_allowlist.txt b/stubs/parsimonious/@tests/stubtest_allowlist.txt
index f870d696046a..abd7877e0cbf 100644
--- a/stubs/parsimonious/@tests/stubtest_allowlist.txt
+++ b/stubs/parsimonious/@tests/stubtest_allowlist.txt
@@ -1,8 +1,5 @@
 parsimonious.nodes.RuleDecoratorMeta.__new__
 
-# Magic:
-parsimonious.adhoc_expression
-
 # Tests are shipped with the source, we ignore it:
 parsimonious.tests
 parsimonious\.tests\..*
diff --git a/stubs/parsimonious/METADATA.toml b/stubs/parsimonious/METADATA.toml
index 698a927e833c..8d2d5ca5fe07 100644
--- a/stubs/parsimonious/METADATA.toml
+++ b/stubs/parsimonious/METADATA.toml
@@ -1,2 +1,2 @@
-version = "0.10.*"
+version = "0.11.*"
 upstream_repository = "https://github.com/erikrose/parsimonious"
diff --git a/stubs/parsimonious/parsimonious/exceptions.pyi b/stubs/parsimonious/parsimonious/exceptions.pyi
index 10f2ca5c7e6f..6b3eb1ac386b 100644
--- a/stubs/parsimonious/parsimonious/exceptions.pyi
+++ b/stubs/parsimonious/parsimonious/exceptions.pyi
@@ -3,7 +3,9 @@ from parsimonious.grammar import LazyReference
 from parsimonious.nodes import Node
 from parsimonious.utils import StrAndRepr
 
-class ParseError(StrAndRepr, Exception):
+class ParsimoniousError(Exception): ...
+
+class ParseError(StrAndRepr, ParsimoniousError):
     text: str
     pos: int
     expr: Expression | None
@@ -14,11 +16,11 @@ class ParseError(StrAndRepr, Exception):
 class LeftRecursionError(ParseError): ...
 class IncompleteParseError(ParseError): ...
 
-class VisitationError(Exception):
+class VisitationError(ParsimoniousError):
     original_class: type[BaseException]
     def __init__(self, exc: BaseException, exc_class: type[BaseException], node: Node) -> None: ...
 
-class BadGrammar(StrAndRepr, Exception): ...
+class BadGrammar(StrAndRepr, ParsimoniousError): ...
 
 class UndefinedLabel(BadGrammar):
     label: LazyReference