diff --git a/.github/workflows/python-app.yml b/.github/workflows/python-app.yml
index eb399a2..ce74317 100644
--- a/.github/workflows/python-app.yml
+++ b/.github/workflows/python-app.yml
@@ -44,6 +44,14 @@ jobs:
             mingw-w64-x86_64-speex
             mingw-w64-x86_64-cmake
             mingw-w64-x86_64-pkg-config
+            mingw-w64-x86_64-libjpeg-turbo
+            mingw-w64-x86_64-libpng
+            mingw-w64-x86_64-libtiff
+            mingw-w64-x86_64-libwebp
+            mingw-w64-x86_64-openjpeg2
+            mingw-w64-x86_64-lcms2
+            mingw-w64-x86_64-zlib
+            mingw-w64-x86_64-freetype
 
       - name: Verify local PortAudio library (Windows)
         if: runner.os == 'Windows'
@@ -220,6 +228,26 @@ jobs:
         run: |
           uv sync
 
+      - name: Build Pillow from source (Windows)
+        if: runner.os == 'Windows'
+        shell: msys2 {0}
+        run: |
+          echo "=== Building Pillow from source ==="
+
+          # Set up environment variables for the build
+          export PKG_CONFIG_PATH="/mingw64/lib/pkgconfig:$PKG_CONFIG_PATH"
+          export INCLUDE="/mingw64/include:$INCLUDE"
+          export LIB="/mingw64/lib:$LIB"
+
+          # Remove any existing Pillow installation
+          uv pip uninstall -y pillow pillow-simd || true
+
+          # Install build dependencies
+          uv pip install --no-binary :all: --no-build-isolation pillow
+
+          echo "=== Pillow build completed ==="
+          uv pip show pillow
+
       - name: Install Nuitka
         run: |
           uv add nuitka