diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 42f2174..271e0a2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,6 +16,8 @@ jobs:
       - name: Install non-Python build dependencies (Ubuntu)
         if: ${{ matrix.os == 'ubuntu-24.04' }}
         run: sudo apt-get -y install gettext
+      - name: Install pyright
+        run: npm install -g pyright
       - name: Install Python dependencies
         run: pip install tox build setuptools chambercourt
       - name: Build
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 70eda6e..30c7bfe 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -17,7 +17,9 @@ jobs:
         with:
           python-version: "3.12"
       - name: Install non-Python build dependencies
-        run: sudo apt-get -y install gettext
+        run: |
+          sudo apt-get -y install gettext
+          npm install -g pyright
       - name: Install Python dependencies
         run: pip install tox build chambercourt
       - name: Build
@@ -59,6 +61,8 @@ jobs:
           Add-Content $env:GITHUB_PATH "C:\nuget\Gettext.Tools.0.22.4\tools\bin";
           nuget install Magick.NET-Q16-AnyCPU -Version 14.3.0 -OutputDirectory c:\nuget;
           Add-Content $env:GITHUB_PATH "C:\nuget\Magic.NET-Q16-AnyCPU.14.3.0\tools\bin"
+      - name: Install pyright
+        run: npm install -g pyright
       - name: Install Python dependencies
         run: pip install tox build setuptools chambercourt
       - name: Build
diff --git a/pyproject.toml b/pyproject.toml
index 5fd5248..3cfacde 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -30,10 +30,6 @@ packages = ["wincoll"]
 [tool.setuptools.package-data]
 wincoll = ["**/*.png", "**/*.wav", "**/*.tmx", "**/*.tsx", "**/*.ttf", "**/*.mo"]
 
-[tool.mypy]
-exclude = ['^dist', '^build']
-strict = true
-
 [tool.ruff.lint]
 select = ["D", "E", "F", "I", "UP"]
 ignore = ["D1", "D401", "E501"]
diff --git a/tox.ini b/tox.ini
index bc05b82..841ae3e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -2,11 +2,12 @@
 envlist = py312,py313
 
 [testenv]
+allowlist_externals =
+    pyright
 deps =
-    mypy
     ruff
     setuptools >= 62.3.0
     types-setuptools
 commands =
-    mypy .
+    pyright wincoll
     ruff check wincoll