diff --git a/CITATION.cff b/CITATION.cff
index f8e228c..7875f3a 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -3,7 +3,7 @@ message: "If you use this software, please cite it as below."
 
 title: "de:code"
 abstract: "DESHIMA code for data analysis"
-version: 2.5.3
+version: 2.5.4
 date-released: 2023-11-07
 license: "MIT"
 doi: "10.5281/zenodo.3384216"
diff --git a/README.md b/README.md
index 4bc9933..545651d 100644
--- a/README.md
+++ b/README.md
@@ -11,5 +11,5 @@ DESHIMA code for data analysis
 ## Installation
 
 ```shell
-pip install decode==2.5.3
+pip install decode==2.5.4
 ```
diff --git a/decode/__init__.py b/decode/__init__.py
index 71bd62b..38eefdf 100644
--- a/decode/__init__.py
+++ b/decode/__init__.py
@@ -8,7 +8,7 @@
     "plot",
     "select",
 ]
-__version__ = "2.5.3"
+__version__ = "2.5.4"
 
 
 # submodules
diff --git a/decode/make.py b/decode/make.py
index fa0f710..ce02f94 100644
--- a/decode/make.py
+++ b/decode/make.py
@@ -106,8 +106,8 @@ def cube(
         Cube DataArray.
 
     """
-    dlon = Quantity(skycoord_grid).to(dems.lon.attrs["units"]).values
-    dlat = Quantity(skycoord_grid).to(dems.lat.attrs["units"]).values
+    dlon = Quantity(skycoord_grid).to(dems.lon.attrs["units"]).value
+    dlat = Quantity(skycoord_grid).to(dems.lat.attrs["units"]).value
     lon_min = np.floor(dems.lon.min() / dlon) * dlon
     lon_max = np.ceil(dems.lon.max() / dlon) * dlon
     lat_min = np.floor(dems.lat.min() / dlat) * dlat
diff --git a/pyproject.toml b/pyproject.toml
index 91e4137..0868294 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "decode"
-version = "2.5.3"
+version = "2.5.4"
 description = "DESHIMA code for data analysis"
 authors = ["Akio Taniguchi <taniguchi@a.phys.nagoya-u.ac.jp>"]
 keywords = [