diff --git a/.python-version b/.python-version
index bd28b9c5c..c8cfe3959 100644
--- a/.python-version
+++ b/.python-version
@@ -1 +1 @@
-3.9
+3.10
diff --git a/contrib/build.Dockerfile b/contrib/build.Dockerfile
index 4e1025352..306b736f6 100644
--- a/contrib/build.Dockerfile
+++ b/contrib/build.Dockerfile
@@ -38,7 +38,7 @@ COPY contrib/reproducible-python.diff /opt/reproducible-python.diff
 ENV PYTHON_CONFIGURE_OPTS="--enable-shared"
 ENV BUILD_DATE="Jan  1 2019"
 ENV BUILD_TIME="00:00:00"
-RUN eval "$(pyenv init --path)" && eval "$(pyenv virtualenv-init -)" && cat /opt/reproducible-python.diff | pyenv install -kp 3.9.19
+RUN eval "$(pyenv init --path)" && eval "$(pyenv virtualenv-init -)" && cat /opt/reproducible-python.diff | pyenv install -kp 3.10.18
 
 ENV LC_ALL=C.UTF-8
 ENV LANG=C.UTF-8
diff --git a/contrib/build_bin.sh b/contrib/build_bin.sh
index 2db94f439..ca801f2ff 100755
--- a/contrib/build_bin.sh
+++ b/contrib/build_bin.sh
@@ -21,7 +21,7 @@ else
 fi
 
 # We also need to change the timestamps of all of the base library files
-lib_dir=$(pyenv prefix)/lib/python3.9
+lib_dir=$(pyenv prefix)/lib/python3.10
 TZ=UTC find ${lib_dir} -name '*.py' -type f -execdir touch -t "201901010000.00" '{}' \;
 
 # Make the standalone binary
diff --git a/contrib/build_wine.sh b/contrib/build_wine.sh
index 64d211f97..b625a8471 100755
--- a/contrib/build_wine.sh
+++ b/contrib/build_wine.sh
@@ -3,7 +3,8 @@
 
 set -ex
 
-PYTHON_VERSION=3.9.13
+# There's no core.msi for newer patch versions
+PYTHON_VERSION=3.10.11
 
 PYTHON_FOLDER="python3"
 PYHOME="c:/$PYTHON_FOLDER"
diff --git a/docs/development/release-process.rst b/docs/development/release-process.rst
index fb739ffdc..9f0da31b7 100644
--- a/docs/development/release-process.rst
+++ b/docs/development/release-process.rst
@@ -26,7 +26,7 @@ Build everything::
 
     docker run -it --name hwi-builder -v $PWD:/opt/hwi --rm  --workdir /opt/hwi hwi-builder /bin/bash -c "contrib/build_bin.sh && contrib/build_dist.sh"
     docker run -it --name hwi-wine-builder -v $PWD:/opt/hwi --rm  --workdir /opt/hwi hwi-wine-builder /bin/bash -c "contrib/build_wine.sh"
-    docker run --platform linux/arm64 -it --rm --name hwi-builder-arm64 -v $PWD:/opt/hwi --workdir /opt/hwi hwi-builder-arm64 /bin/bash -c "contrib/build_bin.sh --without-gui && contrib/build_dist.sh --without-gui" 
+    docker run --platform linux/arm64 -it --rm --name hwi-builder-arm64 -v $PWD:/opt/hwi --workdir /opt/hwi hwi-builder-arm64 /bin/bash -c "contrib/build_bin.sh --without-gui && contrib/build_dist.sh --without-gui"
 
 Building macOS binary
 =====================
@@ -35,14 +35,14 @@ Note that the macOS build is non-deterministic.
 
 First install `pyenv <https://github.com/pyenv/pyenv>`_ using whichever method you prefer.
 
-Then a deterministic build of Python 3.9.19 needs to be installed. This can be done with the patch in ``contrib/reproducible-python.diff``. First ``cd`` into HWI's source tree. Then use::
+Then a deterministic build of Python 3.10.18 needs to be installed. This can be done with the patch in ``contrib/reproducible-python.diff``. First ``cd`` into HWI's source tree. Then use::
 
-    cat contrib/reproducible-python.diff | PYTHON_CONFIGURE_OPTS="--enable-framework" BUILD_DATE="Jan  1 2019" BUILD_TIME="00:00:00" pyenv install -kp 3.9.19
+    cat contrib/reproducible-python.diff | PYTHON_CONFIGURE_OPTS="--enable-framework" BUILD_DATE="Jan  1 2019" BUILD_TIME="00:00:00" pyenv install -kp 3.10.18
 
-Make sure that python 3.9.19 is active::
+Make sure that python 3.10.18 is active::
 
     $ python --version
-    Python 3.9.19
+    Python 3.10.18
 
 Now install `Poetry <https://github.com/sdispater/poetry>`_ with ``pip install poetry``
 
diff --git a/poetry.lock b/poetry.lock
index 8f1173a36..879a56db0 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -933,7 +933,7 @@ description = "Python bindings for the Qt cross-platform application and UI fram
 optional = true
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, <3.11"
 groups = ["main"]
-markers = "python_version == \"3.9\" and extra == \"qt\""
+markers = "python_version == \"3.10\" and extra == \"qt\""
 files = [
     {file = "PySide2-5.15.2.1-5.15.2-cp27-cp27m-macosx_10_13_intel.whl", hash = "sha256:b5e1d92f26b0bbaefff67727ccbb2e1b577f2c0164b349b3d6e80febb4c5bde2"},
     {file = "PySide2-5.15.2.1-5.15.2-cp27-cp27mu-manylinux1_x86_64.whl", hash = "sha256:235240b6ec8206d9fdf0232472c6ef3241783d480425e5b54796f06e39ed23da"},
@@ -1017,7 +1017,7 @@ description = "Python / C++ bindings helper module"
 optional = true
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, <3.11"
 groups = ["main"]
-markers = "python_version == \"3.9\" and extra == \"qt\""
+markers = "python_version == \"3.10\" and extra == \"qt\""
 files = [
     {file = "shiboken2-5.15.2.1-5.15.2-cp27-cp27m-macosx_10_13_intel.whl", hash = "sha256:f890f5611ab8f48b88cfecb716da2ac55aef99e2923198cefcf781842888ea65"},
     {file = "shiboken2-5.15.2.1-5.15.2-cp27-cp27mu-manylinux1_x86_64.whl", hash = "sha256:87079c07587859a525b9800d60b1be971338ce9b371d6ead81f15ee5a46d448b"},
@@ -1311,4 +1311,4 @@ qt = ["pyside2"]
 [metadata]
 lock-version = "2.1"
 python-versions = "^3.9,<3.13"
-content-hash = "536fcc537f47e6fd969f84474533853a87cfc8b60613b7dea5f88ecbea8365d0"
+content-hash = "ae12f8b482cbdbb8d00fda409af9021cf6f4a91f4bd706243344d6be83a50697"
diff --git a/pyproject.toml b/pyproject.toml
index 76d8f09ce..39c2e4d6c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,7 +23,8 @@ pyaes = "^1.6"
 mnemonic = "~0"
 typing-extensions = "^4.4"
 libusb1 = ">=1.7,<4"
-pyside2 = { version = "^5.14.0", optional = true, python = "<3.10" }
+# Used only for Wine
+pyside2 = { version = "^5.14.0", optional = true, python = "3.10" }
 cbor2 = "^5.4.6"
 pyserial = "^3.5"
 dataclasses = {version = "^0.8", python = ">=3.6,<3.7"}