diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index e5be54f54..a0583c3a9 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -123,7 +123,7 @@ jobs:
       - uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
-      - run: pip install mypy types-regex types-setuptools
+      - run: pip install types-regex types-setuptools mypy>=1.5
       - run: mypy . --python-version=${{ matrix.python-version }}
 
   pyright:
@@ -134,7 +134,13 @@ jobs:
         python-version: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12']
     steps:
       - uses: actions/checkout@v3
-      - uses: jakebailey/pyright-action@v1
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+      # pyright vendors typeshed, but let's make sure we have the most up to date stubs
+      - run: pip install types-regex types-setuptools
+      - uses: jakebailey/pyright-action@v2
         with:
           python-version: ${{ matrix.python-version }}
+          annotate: errors
       
diff --git a/Pythonwin/pywin/framework/stdin.py b/Pythonwin/pywin/framework/stdin.py
index 20e1b094b..91fe7ef3e 100644
--- a/Pythonwin/pywin/framework/stdin.py
+++ b/Pythonwin/pywin/framework/stdin.py
@@ -168,4 +168,4 @@ def fake_input(prompt=None):
     finally:
         get_input_line = input
 else:
-    sys.stdin = Stdin()  # type: ignore[assignment]
+    sys.stdin = Stdin()  # type: ignore[assignment] # Not an actual TextIO
diff --git a/pyrightconfig.json b/pyrightconfig.json
index 1b68253a1..1dd371af2 100644
--- a/pyrightconfig.json
+++ b/pyrightconfig.json
@@ -32,7 +32,7 @@
   "reportArgumentType": "none",
   "reportAttributeAccessIssue": "none",
   // FIXE: These all need to be fixed first and turned back to error
-  // spme of the fixes need to be done in types-pywin32 from typeshed
+  // some of the fixes need to be done in types-pywin32 from typeshed
   "reportAssignmentType": "warning",
   "reportCallIssue": "warning",
   "reportIndexIssue": "warning",
diff --git a/pywin32_postinstall.py b/pywin32_postinstall.py
index f81c00e23..5a4981edc 100644
--- a/pywin32_postinstall.py
+++ b/pywin32_postinstall.py
@@ -2,19 +2,14 @@
 #
 # copies pywintypesXX.dll and pythoncomXX.dll into the system directory,
 # and creates a pth file
+import argparse
 import glob
 import os
 import shutil
 import sys
 import sysconfig
-
-try:
-    import winreg as winreg
-except:
-    import winreg
-
-# Send output somewhere so it can be found if necessary...
-import tempfile
+import tempfile  # Send output somewhere so it can be found if necessary...
+import winreg
 
 tee_f = open(os.path.join(tempfile.gettempdir(), "pywin32_postinstall.log"), "w")
 
@@ -44,11 +39,11 @@ def flush(self):
 # with sys.stdout as None but stderr is hooked up. This work-around allows
 # bdist_wininst to see the output we write and display it at the end of
 # the install.
-if sys.stdout is None:
+if sys.stdout is None:  # pyright: ignore[reportUnnecessaryComparison]
     sys.stdout = sys.stderr
 
-sys.stderr = Tee(sys.stderr)  # type: ignore[assignment]
-sys.stdout = Tee(sys.stdout)  # type: ignore[assignment]
+sys.stderr = Tee(sys.stderr)  # type: ignore[assignment] # Not an actual TextIO
+sys.stdout = Tee(sys.stdout)  # type: ignore[assignment] # Not an actual TextIO
 
 com_modules = [
     # module_name,                      class_names
@@ -193,7 +188,9 @@ def LoadSystemModule(lib_dir, modname):
     loader = importlib.machinery.ExtensionFileLoader(modname, filename)
     spec = importlib.machinery.ModuleSpec(name=modname, loader=loader, origin=filename)
     mod = importlib.util.module_from_spec(spec)
-    spec.loader.exec_module(mod)
+    spec.loader.exec_module(  # pyright: ignore[reportOptionalMemberAccess] # We provide the loader, we know it won't be None
+        mod
+    )
 
 
 def SetPyKeyVal(key_name, value_name, value):
@@ -697,8 +694,6 @@ def verify_destination(location):
 
 
 def main():
-    import argparse
-
     parser = argparse.ArgumentParser(
         formatter_class=argparse.RawDescriptionHelpFormatter,
         description="""A post-install script for the pywin32 extensions.