diff --git a/misc/requirements/requirements-pyqt.txt b/misc/requirements/requirements-pyqt.txt
index 5eaf66a2d..610d6c749 100644
--- a/misc/requirements/requirements-pyqt.txt
+++ b/misc/requirements/requirements-pyqt.txt
@@ -1,5 +1,5 @@
 # This file is automatically generated by scripts/dev/recompile_requirements.py
 
-PyQt5==5.12.2
+PyQt5==5.12.3
 PyQt5-sip==4.19.17
 PyQtWebEngine==5.12.1
diff --git a/tox.ini b/tox.ini
index 957f4250c..0cdf41573 100644
--- a/tox.ini
+++ b/tox.ini
@@ -29,7 +29,7 @@ deps =
     pyqt59: PyQt5==5.9.2
     pyqt510: PyQt5==5.10.1
     pyqt511: PyQt5==5.11.3
-    pyqt512: PyQt5==5.12.2
+    pyqt512: PyQt5==5.12.3
     pyqt512: PyQtWebEngine==5.12.1
 commands =
     {envpython} scripts/link_pyqt.py --tox {envdir}