diff --git a/MANIFEST.in b/MANIFEST.in
index 6a68009..2913d40 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,3 +1,5 @@
 recursive-include src/planet_auth/oidc/resources *
 include src/planet_auth/py.typed
+include src/planet_auth_config_injection/py.typed
+include src/planet_auth_utils/py.typed
 prune **/__pycache__
diff --git a/docs/changelog.md b/docs/changelog.md
index 7cb5044..77f72e6 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -1,5 +1,8 @@
 # Changelog
 
+## 2.1.1 - 2025-08-11
+- Add py.typed to all top level packages
+
 ## 2.1.0 - 2025-07-09
 - Initial public release targeting integration with the
   [Planet Client for Python](https://github.com/planetlabs/planet-client-python).
diff --git a/noxfile.py b/noxfile.py
index c1ad97b..c97f384 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -180,7 +180,7 @@ def mkdocs_build(session):
 def mkdocs_checklinks(session):
     """Check links in the documentation"""
     session.install("-e", ".[docs]")
-    session.run("mkdocs-linkcheck", "-v", "-r", "docs")
+    session.run("mkdocs-linkcheck", "-v", "-r", "--sync", "docs")
 
 
 @nox.session(python=_DEFAULT_PYTHON)
diff --git a/src/planet_auth_config_injection/py.typed b/src/planet_auth_config_injection/py.typed
new file mode 100644
index 0000000..e69de29
diff --git a/version.txt b/version.txt
index 7ec1d6d..3e3c2f1 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-2.1.0
+2.1.1