diff --git a/.github/workflows/release_linux.yml b/.github/workflows/release_linux.yml
index 132f759..19a36bb 100644
--- a/.github/workflows/release_linux.yml
+++ b/.github/workflows/release_linux.yml
@@ -14,12 +14,12 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v2
       with:
-        python-version: 3.8
+        python-version: 3.9
     - name: Install dependencies and pyinstall
       run: |
         python -m pip install --upgrade pip setuptools
         pip install -r requirements.txt
-        pip install PyInstaller==4.0
+        pip install PyInstaller==4.3
     - name: Build binary
       run: |
         pyinstaller --onefile -n nanovna-saver nanovna-saver.py
diff --git a/.github/workflows/release_macos.yml b/.github/workflows/release_macos.yml
index 6e8f6c6..5c9cc6b 100644
--- a/.github/workflows/release_macos.yml
+++ b/.github/workflows/release_macos.yml
@@ -14,12 +14,12 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v2
       with:
-        python-version: 3.8
+        python-version: 3.9
     - name: Install dependencies and pyinstall
       run: |
         python -m pip install --upgrade pip setuptools
         pip install -r requirements.txt
-        pip install PyInstaller==4.0
+        pip install PyInstaller==4.3
     - name: Build binary
       run: |
         pyinstaller --onefile -n nanovna-saver nanovna-saver.py