diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 5e1fe5d1..89e836b1 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -13,7 +13,7 @@ repos:
     hooks:
     -   id: check-yaml
 -   repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.12.12
+    rev: v0.13.0
     hooks:
       - id: ruff
         args: [ --fix ]
@@ -26,7 +26,7 @@ repos:
         args: ["--ignore", "D001"]
 
 -   repo: https://github.com/pre-commit/mirrors-mypy
-    rev: 'v1.17.1'
+    rev: 'v1.18.1'
     hooks:
     -   id: mypy
         additional_dependencies:
diff --git a/src/execnet/gateway_base.py b/src/execnet/gateway_base.py
index 60fa783c..bdee89af 100644
--- a/src/execnet/gateway_base.py
+++ b/src/execnet/gateway_base.py
@@ -1007,7 +1007,7 @@ def _no_longer_opened(self, id: int) -> None:
         except KeyError:
             pass
         try:
-            callback, endmarker, strconfig = self._callbacks.pop(id)
+            callback, endmarker, _strconfig = self._callbacks.pop(id)
         except KeyError:
             pass
         else:
@@ -1037,7 +1037,7 @@ def _local_receive(self, id: int, data) -> None:
         # executes in receiver thread
         channel = self._channels.get(id)
         try:
-            callback, endmarker, strconfig = self._callbacks[id]
+            callback, _endmarker, strconfig = self._callbacks[id]
         except KeyError:
             queue = channel._items if channel is not None else None
             if queue is None:
diff --git a/src/execnet/script/shell.py b/src/execnet/script/shell.py
index cc851a5d..d37a48c2 100644
--- a/src/execnet/script/shell.py
+++ b/src/execnet/script/shell.py
@@ -26,7 +26,7 @@ def clientside() -> NoReturn:
     inputlist = [sock, sys.stdin]
     try:
         while 1:
-            r, w, e = select.select(inputlist, [], [])
+            r, _w, _e = select.select(inputlist, [], [])
             if sys.stdin in r:
                 line = input()
                 sock.sendall((line + "\n").encode())
diff --git a/testing/test_gateway.py b/testing/test_gateway.py
index 8df5f21e..bd527ffe 100644
--- a/testing/test_gateway.py
+++ b/testing/test_gateway.py
@@ -503,7 +503,7 @@ def test_popen_stderr_tracing(
         monkeypatch.setenv("EXECNET_DEBUG", "2")
         gw = makegateway("popen")
         pid = gw.remote_exec("import os ; channel.send(os.getpid())").receive()
-        out, err = capfd.readouterr()
+        _out, err = capfd.readouterr()
         worker_line = "[%s] creating workergateway" % pid
         assert worker_line in err
         gw.exit()
diff --git a/testing/test_rsync.py b/testing/test_rsync.py
index 40af7ca2..2112439f 100644
--- a/testing/test_rsync.py
+++ b/testing/test_rsync.py
@@ -142,7 +142,7 @@ def test_rsync_default_reporting(
         rsync = RSync(source)
         rsync.add_target(gw1, dirs.dest1)
         rsync.send()
-        out, err = capsys.readouterr()
+        out, _err = capsys.readouterr()
         assert out.find("hello") != -1
 
     def test_rsync_non_verbose(
diff --git a/testing/test_serializer.py b/testing/test_serializer.py
index 4c78f1ce..06a84cd2 100644
--- a/testing/test_serializer.py
+++ b/testing/test_serializer.py
@@ -155,7 +155,7 @@ def test_bool(dump, load) -> None:
 
 def test_none(dump, load) -> None:
     p = dump("None")
-    tp, s = load(p)
+    _tp, s = load(p)
     assert s == "None"
 
 
diff --git a/testing/test_termination.py b/testing/test_termination.py
index 83f0b980..3d14d999 100644
--- a/testing/test_termination.py
+++ b/testing/test_termination.py
@@ -102,7 +102,7 @@ def test_close_initiating_remote_no_error(
     popen = subprocess.Popen(
         [anypython, str(p), str(execnetdir)], stdout=None, stderr=subprocess.PIPE
     )
-    out, err = popen.communicate()
+    _out, err = popen.communicate()
     print(err)
     errstr = err.decode("utf8")
     lines = [x for x in errstr.splitlines() if "*sys-package" not in x]
@@ -151,6 +151,6 @@ def flush(self):
     popen.stdout.readline()
     reply = pool.spawn(popen.communicate)
     reply.get(timeout=50)
-    out, err = capfd.readouterr()
+    _out, err = capfd.readouterr()
     lines = [x for x in err.splitlines() if "*sys-package" not in x]
     assert not lines or "Killed" in err
diff --git a/testing/test_threadpool.py b/testing/test_threadpool.py
index becc401c..510ae020 100644
--- a/testing/test_threadpool.py
+++ b/testing/test_threadpool.py
@@ -164,7 +164,7 @@ def wait_then_put() -> None:
 
     pool.execmodel.start(wait_then_put)
     assert pool.waitall()
-    out, err = capfd.readouterr()
+    _out, err = capfd.readouterr()
     assert err == ""