diff --git a/stdlib/2and3/binascii.pyi b/stdlib/2and3/binascii.pyi
index 542e1a249..0ace3eb46 100644
--- a/stdlib/2and3/binascii.pyi
+++ b/stdlib/2and3/binascii.pyi
@@ -41,5 +41,5 @@ else:
 def a2b_hex(hexstr: _Ascii) -> bytes: ...
 def unhexlify(hexlify: _Ascii) -> bytes: ...
 
-class Error(Exception): ...
+class Error(ValueError): ...
 class Incomplete(Exception): ...
diff --git a/stdlib/3/subprocess.pyi b/stdlib/3/subprocess.pyi
index 57585adbf..12ef94d3d 100644
--- a/stdlib/3/subprocess.pyi
+++ b/stdlib/3/subprocess.pyi
@@ -813,7 +813,7 @@ class TimeoutExpired(SubprocessError):
     stderr: Any
 
 
-class CalledProcessError(Exception):
+class CalledProcessError(SubprocessError):
     returncode: int
     # morally: _CMD
     cmd: Any
diff --git a/stdlib/3/zipapp.pyi b/stdlib/3/zipapp.pyi
index b90b7559c..76354b6ab 100644
--- a/stdlib/3/zipapp.pyi
+++ b/stdlib/3/zipapp.pyi
@@ -6,7 +6,7 @@ from typing import BinaryIO, Callable, Optional, Union
 
 _Path = Union[str, Path, BinaryIO]
 
-class ZipAppError(Exception): ...
+class ZipAppError(ValueError): ...
 
 if sys.version_info >= (3, 7):
     def create_archive(source: _Path, target: Optional[_Path] = ..., interpreter: Optional[str] = ..., main: Optional[str] = ...,