diff --git a/.github/workflows/release_linux.yml b/.github/workflows/release_linux.yml
deleted file mode 100644
index 952bc39..0000000
--- a/.github/workflows/release_linux.yml
+++ /dev/null
@@ -1,40 +0,0 @@
-name: Linux Release
-
-on:
-  push:
-    tags:
-      - v*
-  workflow_dispatch:
-
-jobs:
-  release:
-    runs-on: ubuntu-20.04
-
-    steps:
-    - name: Checkout repository
-      uses: actions/checkout@v3
-      with:
-        fetch-depth: 0
-    - name: Install python
-      run: |
-        sudo apt-get update
-        sudo apt install -y python3.9 python3-pip python3.9-venv \
-          python3.9-dev \
-          python3-pyqt5
-    - name: Install dependencies and pyinstall
-      run: |
-        python3.9 -m venv build
-        . build/bin/activate
-        python -m pip install pip==23.0.1 setuptools==67.6.0
-        pip install -r requirements.txt
-        pip install PyInstaller==5.9.0
-    - name: Build binary
-      run: |
-        . build/bin/activate
-        python setup.py -V
-        pyinstaller --onefile -p src -n nanovna-saver nanovna-saver.py
-    - name: Archive production artifacts
-      uses: actions/upload-artifact@v1
-      with:
-        name: NanoVNASaver.linux
-        path: dist/nanovna-saver
diff --git a/.github/workflows/release_linux_modern.yml b/.github/workflows/release_linux_modern.yml
index a64d163..76e562e 100644
--- a/.github/workflows/release_linux_modern.yml
+++ b/.github/workflows/release_linux_modern.yml
@@ -21,14 +21,16 @@ jobs:
         sudo apt-get update
         sudo apt install -y python3.11 python3-pip python3.11-venv \
           python3.11-dev \
-          python3-pyqt5
+          '^libxcb.*-dev' libx11-xcb-dev \
+          libglu1-mesa-dev libxrender-dev libxi-dev \
+          libxkbcommon-dev libxkbcommon-x11-dev
     - name: Install dependencies and pyinstall
       run: |
         python3.11 -m venv build
         . build/bin/activate
-        python -m pip install pip==23.0.1 setuptools==67.6.0
+        python -m pip install pip==23.2.1 setuptools==68.0.0
         pip install -r requirements.txt
-        pip install PyInstaller==5.9.0
+        pip install PyInstaller==5.13.0
     - name: Build binary
       run: |
         . build/bin/activate
diff --git a/.github/workflows/release_macos.yml b/.github/workflows/release_macos.yml
index e7873fd..60b602b 100644
--- a/.github/workflows/release_macos.yml
+++ b/.github/workflows/release_macos.yml
@@ -20,9 +20,9 @@ jobs:
         python-version: 3.11
     - name: Install dependencies and pyinstall
       run: |
-        python -m pip install pip==23.0.1 setuptools==67.6.0
+        python -m pip install pip==23.2.1 setuptools==68.0.0
         pip install -r requirements.txt
-        pip install PyInstaller==5.9.0
+        pip install PyInstaller==5.13.0
     - name: Build binary
       run: |
         python setup.py -V
diff --git a/.github/workflows/release_macos_app.yml b/.github/workflows/release_macos_app.yml
index ceb6d64..fb28a2c 100644
--- a/.github/workflows/release_macos_app.yml
+++ b/.github/workflows/release_macos_app.yml
@@ -25,9 +25,9 @@ jobs:
 
     - name: Install dependencies and pyinstall
       run: |
-        python -m pip install pip==23.0.1 setuptools==67.6.0
+        python -m pip install pip==23.2.1 setuptools==68.0.0
         pip install -r requirements.txt
-        pip install PyInstaller==5.9.0
+        pip install PyInstaller==5.13.0
 
     - name: Build binary
       run: |
diff --git a/.github/workflows/release_win.yml b/.github/workflows/release_win.yml
index a1d5116..381d818 100644
--- a/.github/workflows/release_win.yml
+++ b/.github/workflows/release_win.yml
@@ -26,7 +26,7 @@ jobs:
       run: |
         pip install -U pip setuptools setuptools-scm
         pip install -r requirements.txt
-        pip install PyInstaller==5.9.0
+        pip install PyInstaller==5.13.0
     - name: Build binary
       run: |
         python setup.py -V
diff --git a/flatpak.manifest.yml b/flatpak.manifest.yml
index 280fcfa..8320c60 100644
--- a/flatpak.manifest.yml
+++ b/flatpak.manifest.yml
@@ -1,6 +1,6 @@
 app-id: io.github.zarath.nanovna-saver
 runtime: org.kde.Platform
-runtime-version: '5.15-21.08'
+runtime-version: '6.5'
 sdk: org.kde.Sdk
 command: /app/bin/NanoVNASaver
 build-options:
@@ -10,7 +10,7 @@ modules:
   - name: nanonva-saver
     buildsystem: simple
     build-commands:
-      - pip3 install --prefix=/app wheel
+      - pip3 install --prefix=/app wheel setuptools setuptools-scm
       - pip3 install --prefix=/app git+https://github.com/NanoVNA-Saver/nanovna-saver.git
 finish-args:
   # X11 + XShm access
diff --git a/nanovna-saver.py b/nanovna-saver.py
index ee4a537..21f81a5 100755
--- a/nanovna-saver.py
+++ b/nanovna-saver.py
@@ -25,9 +25,8 @@ import sys
 # Ignore the current working directory.
 src = os.path.join(os.path.dirname(__file__), "src")
 
-# Ignore previously installed versions.
-sys.path.insert(0, src)
-assert os.path.exists(src)
+if os.path.exists(src):
+   sys.path.insert(0, src)
 
 # pylint: disable-next=wrong-import-position
 import NanoVNASaver.__main__
diff --git a/requirements.txt b/requirements.txt
index d0e78c0..2a1c294 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 pyserial==3.5
-PyQt6==6.4.2
-numpy==1.24.2
-scipy==1.10.1
-Cython==0.29.33
-setuptools==67.6.0
+PyQt6==6.5.2
+numpy==1.25.1
+scipy==1.11.1
+Cython==3.0.0
+setuptools==68.0.0
 setuptools-scm==7.1.0
diff --git a/setup.cfg b/setup.cfg
index e6e783f..a04df33 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -35,6 +35,7 @@ install_requires =
     numpy>=1.21.1
     scipy>=1.7.1
     Cython>=0.29.24
+    setuptools-scm
 
 [options.packages.find]
 where = src