diff --git a/docs/getting_started.md b/docs/getting_started.md
index 4ad544d58..626353e5e 100644
--- a/docs/getting_started.md
+++ b/docs/getting_started.md
@@ -25,13 +25,13 @@ You can install Textual via PyPI.
 If you plan on developing Textual apps, then you should install `textual[dev]`. The `[dev]` part installs a few extra dependencies for development.
 
 ```
-pip install "textual[dev]==0.2.0b3"
+pip install "textual[dev]==0.2.0b4"
 ```
 
 If you only plan on _running_ Textual apps, then you can drop the `[dev]` part:
 
 ```
-pip install textual==0.2.0b3
+pip install textual==0.2.0b4
 ```
 
 !!! important
diff --git a/pyproject.toml b/pyproject.toml
index a2c8d0853..c38c1faf3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "textual"
-version = "0.2.0b3"
+version = "0.2.0b4"
 homepage = "https://github.com/Textualize/textual"
 description = "Modern Text User Interface framework"
 authors = ["Will McGugan <will@textualize.io>"]
@@ -16,6 +16,17 @@ classifiers = [
     "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
+    "Typing :: Typed",
+]
+include = [
+    "src/textual/py.typed",
+    "src/textual/cli/py.typed",
+    "src/textual/css/py.typed",
+    "src/textual/devtools/py.typed",
+    "src/textual/drivers/py.typed",
+    "src/textual/layouts/py.typed",
+    "src/textual/renderables/py.typed",
+    "src/textual/widgets/py.typed"    
 ]
 
 [tool.poetry.scripts]
@@ -40,7 +51,7 @@ dev = ["aiohttp", "click", "msgpack"]
 [tool.poetry.dev-dependencies]
 pytest = "^7.1.3"
 black = "^22.3.0"
-mypy = "^0.950"
+mypy = "^0.982"
 pytest-cov = "^2.12.1"
 mkdocs = "^1.3.0"
 mkdocstrings = {extras = ["python"], version = "^0.19.0"}