diff --git a/src/surface/gui/setup.py b/src/surface/gui/setup.py
index 27e84376..f83a25a0 100644
--- a/src/surface/gui/setup.py
+++ b/src/surface/gui/setup.py
@@ -18,7 +18,7 @@
         (os.path.join('share', package_name, 'launch'),
          glob('launch/*launch.[pxy][yma]*'))
     ],
-    install_requires=['setuptools', 'pyqt6', 'pyqtdarktheme', 'opencv-python>=4.8.1',
+    install_requires=['setuptools', 'pyqt6==6.5.3', 'pyqtdarktheme', 'opencv-python>=4.8.1',
                       'numpy>=1.26', 'pytest-qt', 'pytest-xvfb', 'flake8==4.0.1', 'mypy >= 1.7'],
     zip_safe=True,
     maintainer='Benjamin Poulin',