diff --git a/construct-stubs/__init__.pyi b/construct-stubs/__init__.pyi
index d9493ff..858384d 100644
--- a/construct-stubs/__init__.pyi
+++ b/construct-stubs/__init__.pyi
@@ -205,6 +205,7 @@ __all__ = [
     'TerminatedError',
     'this',
     'Timestamp',
+    'TimestampAdapter',
     'TimestampError',
     'Transformed',
     'Tunnel',
diff --git a/construct-stubs/core.pyi b/construct-stubs/core.pyi
index 9117574..4403c05 100644
--- a/construct-stubs/core.pyi
+++ b/construct-stubs/core.pyi
@@ -607,22 +607,26 @@ if sys.version_info >= (3, 8):
 else:
     MSDOS = str
 
+class TimestampAdapter(
+    Adapter[SubconParsedType, SubconBuildTypes, arrow.Arrow, arrow.Arrow]
+): ...
+
 @t.overload
 def Timestamp(
     subcon: Construct[int, int], unit: MSDOS, epoch: MSDOS
-) -> Adapter[int, int, arrow.Arrow, arrow.Arrow]: ...
+) -> TimestampAdapter[int, int]: ...
 @t.overload
 def Timestamp(
     subcon: Construct[int, int],
     unit: t.Union[int, float],
     epoch: t.Union[int, arrow.Arrow],
-) -> Adapter[int, int, arrow.Arrow, arrow.Arrow]: ...
+) -> TimestampAdapter[int, int]: ...
 @t.overload
 def Timestamp(
     subcon: Construct[float, float],
     unit: t.Union[int, float],
     epoch: t.Union[int, arrow.Arrow],
-) -> Adapter[float, float, arrow.Arrow, arrow.Arrow]: ...
+) -> TimestampAdapter[float, float]: ...
 
 K = t.TypeVar("K")
 V = t.TypeVar("V")
diff --git a/requirements.txt b/requirements.txt
index 3093f87..10c168b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-construct==2.10.64
+construct==2.10.66
 pytest>=6.2.0
 numpy>=1.20.*
 arrow
diff --git a/setup.py b/setup.py
index 0f5f5e2..c5d0975 100644
--- a/setup.py
+++ b/setup.py
@@ -20,7 +20,7 @@ setup(
     url="https://github.com/timrid/construct-typing",
     author="Tim Riddermann",
     python_requires=">=3.7",
-    install_requires=["construct==2.10.64"],
+    install_requires=["construct==2.10.66"],
     keywords=[
         "construct",
         "kaitai",