diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 57a6a11..a0511af 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -7,7 +7,7 @@ on:
       - develop
   pull_request:
     branches:
-      - '**'
+      - "**"
 
 concurrency:
   group: tests-${{ github.head_ref || github.ref }}
@@ -15,7 +15,7 @@ concurrency:
 
 jobs:
   tests:
-    name: ${{ matrix.os }} / ${{ matrix.python-version }}
+    name: ${{ matrix.os }} / ${{ matrix.python-version }} / ${{ matrix.qt-version }}
     runs-on: ${{ matrix.image }}
     strategy:
       matrix:
@@ -24,11 +24,11 @@ jobs:
         qt-version: ["pyside2", "pyside6", "pyqt5", "pyqt6"]
         include:
           - os: Ubuntu
-            image: ubuntu-20.04
+            image: ubuntu-24.04
           - os: Windows
             image: windows-2022
           - os: MacOS
-            image: macos-12
+            image: macos-14
       fail-fast: false
     defaults:
       run:
@@ -49,7 +49,7 @@ jobs:
 
       - name: Bootstrap poetry
         run: |
-          curl -sSL https://install.python-poetry.org | python - -y
+          curl -sSL https://install.python-poetry.org | POETRY_VERSION=1.8.4 python - -y
 
       - name: Update Path
         if: ${{ matrix.os != 'Windows' }}
@@ -100,7 +100,7 @@ jobs:
           DEBIAN_FRONTEND: noninteractive
         run: |
           sudo apt-get -qq update
-          sudo apt-get -qq install '^libxcb.*-dev' libx11-xcb-dev libglu1-mesa-dev libxrender-dev libxi-dev libxkbcommon-dev libxkbcommon-x11-dev
+          sudo apt-get -qq install '^libxcb.*-dev' libx11-xcb-dev libglu1-mesa-dev libxrender-dev libxi-dev libxkbcommon-dev libxkbcommon-x11-dev libegl-dev
 
       - name: Run pytest
         uses: coactions/setup-xvfb@v1
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index a948904..2eda3f3 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -3,7 +3,7 @@ name: Release
 on:
   push:
     tags:
-      - '*.*.*'
+      - "*.*.*"
 
 jobs:
   release:
@@ -20,7 +20,7 @@ jobs:
 
       - name: Install Poetry
         run: |
-          curl -sSL https://install.python-poetry.org | python - -y
+          curl -sSL https://install.python-poetry.org | POETRY_VERSION=1.8.4 python - -y
 
       - name: Update PATH
         run: echo "$HOME/.local/bin" >> $GITHUB_PATH
diff --git a/pyproject.toml b/pyproject.toml
index e134610..af8ba85 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,12 +1,12 @@
 [tool.poetry]
 name = "qasync"
-version = "0.27.1"
+version = "0.27.2"
 description = "Python library for using asyncio in Qt-based applications"
 authors = [
-    "Arve Knudsen <arve.knudsen@gmail.com>",
-    "Gerard Marull-Paretas <gerard@teslabs.com>",
-    "Mark Harviston <mark.harviston@gmail.com>",
-    "Sam McCormack",
+  "Arve Knudsen <arve.knudsen@gmail.com>",
+  "Gerard Marull-Paretas <gerard@teslabs.com>",
+  "Mark Harviston <mark.harviston@gmail.com>",
+  "Sam McCormack",
 ]
 maintainers = ["Alex March <alexmach@fastmail.com>"]
 license = "BSD-2-Clause"
@@ -15,13 +15,13 @@ homepage = "https://github.com/CabbageDevelopment/qasync"
 repository = "https://github.com/CabbageDevelopment/qasync"
 keywords = ["Qt", "asncio"]
 classifiers = [
-    "Development Status :: 4 - Beta",
-    "Environment :: X11 Applications :: Qt",
-    "Intended Audience :: Developers",
-    "Operating System :: MacOS",
-    "Operating System :: Microsoft",
-    "Operating System :: POSIX",
-    "Topic :: Software Development :: Libraries :: Python Modules",
+  "Development Status :: 4 - Beta",
+  "Environment :: X11 Applications :: Qt",
+  "Intended Audience :: Developers",
+  "Operating System :: MacOS",
+  "Operating System :: Microsoft",
+  "Operating System :: POSIX",
+  "Topic :: Software Development :: Libraries :: Python Modules",
 ]
 
 [tool.poetry.dependencies]
diff --git a/qasync/__init__.py b/qasync/__init__.py
index 3363e97..ef9264b 100644
--- a/qasync/__init__.py
+++ b/qasync/__init__.py
@@ -342,7 +342,9 @@ def __init__(self, app=None, set_running_loop=False, already_running=False):
 
         self.__call_soon_signaller = signaller = _make_signaller(QtCore, object, tuple)
         self.__call_soon_signal = signaller.signal
-        signaller.signal.connect(lambda callback, args: self.call_soon(callback, *args))
+        self.__call_soon_signal.connect(
+            lambda callback, args: self.call_soon(callback, *args)
+        )
 
         assert self.__app is not None
         super().__init__()
@@ -438,6 +440,9 @@ def close(self):
         if self.__default_executor is not None:
             self.__default_executor.shutdown()
 
+        if self.__call_soon_signal:
+            self.__call_soon_signal.disconnect()
+
         super().close()
 
         self._timer.stop()
@@ -524,6 +529,7 @@ def _remove_reader(self, fd):
             return False
         else:
             notifier.setEnabled(False)
+            notifier.activated["int"].disconnect()
             return True
 
     def _add_writer(self, fd, callback, *args):
@@ -564,6 +570,7 @@ def _remove_writer(self, fd):
             return False
         else:
             notifier.setEnabled(False)
+            notifier.activated["int"].disconnect()
             return True
 
     def __notifier_cb_wrapper(self, notifiers, notifier, fd, callback, args):
@@ -579,8 +586,6 @@ def __notifier_cb_wrapper(self, notifiers, notifier, fd, callback, args):
             # callback. We must not re-enable it in that case.
             if notifiers.get(fd, None) is notifier:
                 notifier.setEnabled(True)
-            else:
-                notifier.activated["int"].disconnect()
 
     def __on_notifier_ready(self, notifiers, notifier, fd, callback, args):
         if fd not in notifiers:
diff --git a/tests/test_qeventloop.py b/tests/test_qeventloop.py
index 68ba88b..14bc6c1 100644
--- a/tests/test_qeventloop.py
+++ b/tests/test_qeventloop.py
@@ -4,19 +4,19 @@
 # BSD License
 
 import asyncio
-import logging
-import sys
-import os
 import ctypes
+import logging
 import multiprocessing
-from concurrent.futures import ThreadPoolExecutor, ProcessPoolExecutor
+import os
 import socket
 import subprocess
-
-import qasync
+import sys
+from concurrent.futures import ProcessPoolExecutor, ThreadPoolExecutor
 
 import pytest
 
+import qasync
+
 
 @pytest.fixture
 def loop(request, application):