diff --git a/pyproject.toml b/pyproject.toml
index 0dd450e0..2a437d95 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,7 +24,7 @@ exclude_also = [
 
 [tool.mypy]
 ignore_missing_imports = false
-implicit_reexport = true
+implicit_reexport = false
 
 [[tool.mypy.overrides]]
 module = "tests.*"
diff --git a/tox.ini b/tox.ini
index 6c0e93c7..0e02b449 100644
--- a/tox.ini
+++ b/tox.ini
@@ -30,11 +30,12 @@ commands =
 deps =
     mypy==1.16.1
     aiohttp==3.12.13
+    andi==0.8.0
     pytest==8.4.1
     types-requests==2.32.4.20250611
     types-python-dateutil==2.9.0.20250516
     url-matcher==0.6.0
-    zyte-common-items==0.27.0
+    zyte-common-items==0.29.0
 
 commands = mypy web_poet tests
 
diff --git a/web_poet/page_inputs/__init__.py b/web_poet/page_inputs/__init__.py
index 9c781e29..6932fd2c 100644
--- a/web_poet/page_inputs/__init__.py
+++ b/web_poet/page_inputs/__init__.py
@@ -12,3 +12,20 @@
 from .response import AnyResponse
 from .stats import Stats
 from .url import RequestUrl, ResponseUrl
+
+__all__ = [
+    "AnyResponse",
+    "BrowserHtml",
+    "BrowserResponse",
+    "HttpClient",
+    "HttpRequest",
+    "HttpRequestBody",
+    "HttpRequestHeaders",
+    "HttpResponse",
+    "HttpResponseBody",
+    "HttpResponseHeaders",
+    "PageParams",
+    "RequestUrl",
+    "ResponseUrl",
+    "Stats",
+]
diff --git a/web_poet/serialization/__init__.py b/web_poet/serialization/__init__.py
index cb49112a..06e6a37b 100644
--- a/web_poet/serialization/__init__.py
+++ b/web_poet/serialization/__init__.py
@@ -12,3 +12,17 @@
     serialize,
     serialize_leaf,
 )
+
+__all__ = [
+    "DeserializeFunction",
+    "SerializeFunction",
+    "SerializedData",
+    "SerializedDataFileStorage",
+    "SerializedLeafData",
+    "deserialize",
+    "deserialize_leaf",
+    "load_class",
+    "register_serialization",
+    "serialize",
+    "serialize_leaf",
+]
diff --git a/web_poet/testing/__init__.py b/web_poet/testing/__init__.py
index 99e12911..3d31df8c 100644
--- a/web_poet/testing/__init__.py
+++ b/web_poet/testing/__init__.py
@@ -1 +1,3 @@
 from .fixture import Fixture
+
+__all__ = ["Fixture"]