diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index e3c0cdaca75..3da6a52e66a 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,7 +1,7 @@
 minimum_pre_commit_version: "4.4.0"
 repos:
 - repo: https://github.com/astral-sh/ruff-pre-commit
-  rev: "v0.15.8"
+  rev: "v0.15.9"
   hooks:
     - id: ruff-check
       args: ["--fix"]
@@ -34,7 +34,7 @@ repos:
     hooks:
     -   id: python-use-type-annotations
 -   repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v1.19.1
+    rev: v1.20.0
     hooks:
     -   id: mypy
         files: ^(src/|testing/|scripts/)
diff --git a/src/_pytest/raises.py b/src/_pytest/raises.py
index 75eea7d8cc9..76199e3df02 100644
--- a/src/_pytest/raises.py
+++ b/src/_pytest/raises.py
@@ -1482,8 +1482,7 @@ def set_result(self, expected: int, actual: int, result: str | None) -> None:
     def get_result(self, expected: int, actual: int) -> str | None:
         res = self.results[actual][expected]
         assert res is not NotChecked
-        # mypy doesn't support identity checking against anything but None
-        return res  # type: ignore[return-value]
+        return res
 
     def has_result(self, expected: int, actual: int) -> bool:
         return self.results[actual][expected] is not NotChecked
diff --git a/testing/code/test_code.py b/testing/code/test_code.py
index ae5e0e949cf..63f6031e396 100644
--- a/testing/code/test_code.py
+++ b/testing/code/test_code.py
@@ -148,7 +148,7 @@ class TestExceptionInfo:
     def test_bad_getsource(self) -> None:
         try:
             if False:
-                pass
+                pass  # type: ignore[unreachable]
             else:
                 assert False
         except AssertionError:
@@ -164,7 +164,7 @@ class TestTracebackEntry:
     def test_getsource(self) -> None:
         try:
             if False:
-                pass
+                pass  # type: ignore[unreachable]
             else:
                 assert False
         except AssertionError:
diff --git a/testing/code/test_excinfo.py b/testing/code/test_excinfo.py
index 70499fec893..9998ad1b141 100644
--- a/testing/code/test_excinfo.py
+++ b/testing/code/test_excinfo.py
@@ -768,7 +768,7 @@ def func1(m):
         reprfuncargs = p.repr_args(entry)
         assert reprfuncargs is not None
         assert reprfuncargs.args[0] == ("m", repr("m" * 500))
-        assert "..." not in cast(str, reprfuncargs.args[0][1])
+        assert "..." not in reprfuncargs.args[0][1]
 
     def test_repr_tracebackentry_lines(self, importasmod) -> None:
         mod = importasmod(
diff --git a/testing/test_capture.py b/testing/test_capture.py
index 11fd18f08ff..88368fadaae 100644
--- a/testing/test_capture.py
+++ b/testing/test_capture.py
@@ -920,7 +920,7 @@ def test_dontreadfrominput() -> None:
 
     f = DontReadFromInput()
     assert f.buffer is f  # type: ignore[comparison-overlap]
-    assert not f.isatty()
+    assert not f.isatty()  # type: ignore[unreachable]
     pytest.raises(OSError, f.read)
     pytest.raises(OSError, f.readlines)
     iter_f = iter(f)
diff --git a/testing/test_collection.py b/testing/test_collection.py
index f83bfd9a712..093162ddec4 100644
--- a/testing/test_collection.py
+++ b/testing/test_collection.py
@@ -84,6 +84,7 @@ def test_foo(self):
         assert isinstance(fn, pytest.Function)
 
         assert fn.getparent(pytest.Module) is modcol
+        assert modcol is not None
         assert modcol.module is not None
         assert modcol.cls is None
         assert modcol.instance is None