diff --git a/CITATION.cff b/CITATION.cff
index a435084..babb7af 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -23,5 +23,5 @@ keywords:
   - radio-astronomy
   - sam45
 license: MIT
-version: 1.0.0rc1
-date-released: '2025-12-25'
+version: 1.0.0rc2
+date-released: '2025-12-26'
diff --git a/docs/_static/switcher.json b/docs/_static/switcher.json
index e3a87e5..e5d519b 100644
--- a/docs/_static/switcher.json
+++ b/docs/_static/switcher.json
@@ -1,7 +1,12 @@
 [
     {
-        "name": "1.0.0rc1 (latest)",
-        "version": "1.0.0rc1",
+        "name": "1.0.0rc2 (latest)",
+        "version": "1.0.0rc2",
         "url": "https://astropenguin.github.io/sam45/"
+    },
+    {
+        "name": "1.0.0rc1",
+        "version": "1.0.0rc1",
+        "url": "https://astropenguin.github.io/sam45/1.0.0rc1"
     }
 ]
diff --git a/docs/build b/docs/build
index 96ccf61..9bcf26a 100755
--- a/docs/build
+++ b/docs/build
@@ -5,4 +5,4 @@ export LC_ALL=C.UTF-8
 
 sphinx-apidoc -efMT -d 2 -o docs/_apidoc sam45
 sphinx-build -a -b html docs docs/_build
-sphinx-build -a -b html docs docs/_build/1.0.0rc1
+sphinx-build -a -b html docs docs/_build/1.0.0rc2
diff --git a/docs/conf.py b/docs/conf.py
index 41c40ab..d35e494 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -18,6 +18,6 @@
     ],
     "switcher": {
         "json_url": "https://astropenguin.github.io/sam45/_static/switcher.json",
-        "version_match": "1.0.0rc1",
+        "version_match": "1.0.0rc2",
     },
 }
diff --git a/pyproject.toml b/pyproject.toml
index e9ea9e3..05d3254 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "sam45"
-version = "1.0.0rc1"
+version = "1.0.0rc2"
 description = "NRO/SAM45 log data reader"
 readme = "README.md"
 keywords = [
diff --git a/sam45/__init__.py b/sam45/__init__.py
index 969d651..a15b509 100644
--- a/sam45/__init__.py
+++ b/sam45/__init__.py
@@ -1,5 +1,5 @@
 __all__ = ["dtypes", "read"]
-__version__ = "1.0.0rc1"
+__version__ = "1.0.0rc2"
 
 
 # dependencies
diff --git a/sam45/dtypes.py b/sam45/dtypes.py
index 75a7cd4..45bc469 100644
--- a/sam45/dtypes.py
+++ b/sam45/dtypes.py
@@ -8,16 +8,16 @@
 
 
 # dependencies
-import numpy as np
+from numpy import dtype
 
 
-def _get_dtype(name: str, /) -> np.dtype[Any]:
-    with (files("sam45") / "dtypes.toml").open() as f:
-        text = f.read()
+def _get_dtype(name: str, /) -> dtype[Any]:
+    with (files("sam45") / "dtypes.toml").open() as file:
+        source = file.read()
 
-    consts = loads(text)["consts"]
-    dtype = loads(text.format(**consts))[name]
-    return np.dtype([(item["name"], item["dtype"]) for item in dtype])
+    consts = loads(source)["consts"]
+    fields = loads(source.format(**consts))[name]
+    return dtype([(f["name"], f["dtype"]) for f in fields]).newbyteorder("<")
 
 
 ctl = _get_dtype("ctl")
diff --git a/uv.lock b/uv.lock
index 99290a8..b3be26b 100644
--- a/uv.lock
+++ b/uv.lock
@@ -957,7 +957,7 @@ wheels = [
 
 [[package]]
 name = "sam45"
-version = "1.0.0rc1"
+version = "1.0.0rc2"
 source = { editable = "." }
 dependencies = [
     { name = "numpy", version = "2.2.6", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version < '3.11'" },