diff --git a/.github/workflows/test-windows.yml b/.github/workflows/test-windows.yml
index c1ba52719ae..9b5da137d8f 100644
--- a/.github/workflows/test-windows.yml
+++ b/.github/workflows/test-windows.yml
@@ -73,22 +73,14 @@ jobs:
     - name: Print build system information
       run: python3 .github/workflows/system-info.py
 
-    - name: Install Python dependencies
-      run: >
-        python3 -m pip install
-        coverage>=7.4.2
-        defusedxml
-        olefile
-        pyroma
-        pytest
-        pytest-cov
-        pytest-timeout
+    - name: Upgrade pip
+      run: |
+        python3 -m pip install --upgrade pip
 
     - name: Install CPython dependencies
       if: "!contains(matrix.python-version, 'pypy')"
-      run: >
-        python3 -m pip install
-        PyQt6
+      run: |
+        python3 -m pip install PyQt6
 
     - name: Install dependencies
       id: install
@@ -188,7 +180,7 @@ jobs:
     - name: Build Pillow
       run: |
         $FLAGS="-C raqm=vendor -C fribidi=vendor"
-        cmd /c "winbuild\build\build_env.cmd && $env:pythonLocation\python.exe -m pip install -v $FLAGS ."
+        cmd /c "winbuild\build\build_env.cmd && $env:pythonLocation\python.exe -m pip install -v $FLAGS .[tests]"
         & $env:pythonLocation\python.exe selftest.py --installed
       shell: pwsh
 
diff --git a/pyproject.toml b/pyproject.toml
index c55be769341..bff295bc60f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -56,7 +56,7 @@ optional-dependencies.mic = [
 ]
 optional-dependencies.tests = [
   "check-manifest",
-  "coverage",
+  "coverage>=7.4.2",
   "defusedxml",
   "markdown2",
   "olefile",
@@ -65,6 +65,7 @@ optional-dependencies.tests = [
   "pytest",
   "pytest-cov",
   "pytest-timeout",
+  "trove-classifiers>=2024.10.12",
 ]
 optional-dependencies.typing = [
   "typing-extensions; python_version<'3.10'",