diff --git a/docs/source/tech_source.rst b/docs/source/tech_source.rst
index 87d616a3..9b100ebd 100644
--- a/docs/source/tech_source.rst
+++ b/docs/source/tech_source.rst
@@ -39,11 +39,9 @@ The following Python packages are needed to run all features of novelWriter:
 * ``PyQt5`` – needed for connecting with the Qt5 libraries.
 * ``PyEnchant`` – needed for spell checking (optional).
 
-PyQt/Qt should be at least 5.10, but ideally 5.13 or higher for all features to work. For instance,
-searching using regular expressions with full Unicode support requires 5.13.
-
-If you want spell checking, you must install the ``PyEnchant`` package. The spell check library
-must be at least 3.0 to work with Windows. On Linux, 2.0 also works fine.
+PyQt/Qt must be at least 5.15.0. If you want spell checking, you must install the ``PyEnchant``
+package. The spell check library must be at least 3.0 to work with Windows. On Linux, 2.0 also
+works fine.
 
 If you install from PyPi, these dependencies should be installed automatically. If you install from
 source, dependencies can still be installed from PyPi with:
@@ -55,7 +53,7 @@ source, dependencies can still be installed from PyPi with:
 .. note::
    On Linux distros, the Qt library is usually split up into multiple packages. In some cases,
    secondary dependencies may not be installed automatically. For novelWriter, the library files
-   for renderring the SVG icons may be left out and needs to be installed manually. This is the
+   for rendering the SVG icons may be left out and needs to be installed manually. This is the
    case on for instance Arch Linux.
 
 
diff --git a/novelwriter/__init__.py b/novelwriter/__init__.py
index dde2ca29..cf1fa5c2 100644
--- a/novelwriter/__init__.py
+++ b/novelwriter/__init__.py
@@ -167,14 +167,14 @@ def main(sysArgs: list | None = None) -> GuiMain | None:
             "At least Python 3.8 is required, found %s" % CONFIG.verPyString
         )
         errorCode |= 0x04
-    if CONFIG.verQtValue < 0x050a00:
+    if CONFIG.verQtValue < 0x050f00:
         errorData.append(
-            "At least Qt5 version 5.10 is required, found %s" % CONFIG.verQtString
+            "At least Qt5 version 5.15.0 is required, found %s" % CONFIG.verQtString
         )
         errorCode |= 0x08
-    if CONFIG.verPyQtValue < 0x050a00:
+    if CONFIG.verPyQtValue < 0x050f00:
         errorData.append(
-            "At least PyQt5 version 5.10 is required, found %s" % CONFIG.verPyQtString
+            "At least PyQt5 version 5.15.0 is required, found %s" % CONFIG.verPyQtString
         )
         errorCode |= 0x10
 
diff --git a/pyproject.toml b/pyproject.toml
index b6d40d9d..de8d28ef 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,7 +27,7 @@ classifiers = [
 ]
 requires-python = ">=3.8"
 dependencies = [
-    "pyqt5>=5.10",
+    "pyqt5>=5.15",
     "pyenchant>=3.0.0",
 ]
 dynamic = ["version"]
diff --git a/requirements.txt b/requirements.txt
index af56101a..b6d30310 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
-pyqt5>=5.10
+pyqt5>=5.15
 pyenchant>=3.0.0
diff --git a/setup/debian/control b/setup/debian/control
index 556a5051..10481e32 100644
--- a/setup/debian/control
+++ b/setup/debian/control
@@ -2,14 +2,14 @@ Source: novelwriter
 Maintainer: Veronica Berglyd Olsen <code@vkbo.net>
 Section: text
 Priority: optional
-Build-Depends: dh-python, python3-setuptools, python3-all, debhelper (>= 9), python3 (>=3.8), python3-pyqt5 (>= 5.10), python3-enchant (>= 2.0)
+Build-Depends: dh-python, python3-setuptools, python3-all, debhelper (>= 9), python3 (>=3.8), python3-pyqt5 (>= 5.15), python3-enchant (>= 2.0)
 Standards-Version: 4.5.1
 Homepage: https://novelwriter.io
 X-Python3-Version: >= 3.8
 
 Package: novelwriter
 Architecture: all
-Depends: ${misc:Depends}, ${python3:Depends}, python3 (>=3.8), python3-pyqt5 (>= 5.10), python3-enchant (>= 2.0)
+Depends: ${misc:Depends}, ${python3:Depends}, python3 (>=3.8), python3-pyqt5 (>= 5.15), python3-enchant (>= 2.0)
 Description: A markdown-like text editor for planning and writing novels
  novelWriter is a plain text editor designed for writing novels assembled from
  many smaller text documents. It uses a minimal formatting syntax inspired by
diff --git a/setup/launchpad_setup.cfg b/setup/launchpad_setup.cfg
index df0af65a..a2757b71 100644
--- a/setup/launchpad_setup.cfg
+++ b/setup/launchpad_setup.cfg
@@ -34,7 +34,7 @@ python_requires = >=3.8
 include_package_data = True
 packages = find_namespace:
 install_requires =
-    pyqt5>=5.10
+    pyqt5>=5.15
     pyenchant>=3.0.0
 
 [options.packages.find]