diff --git a/pyproject.toml b/pyproject.toml
index 0c28680..b1454bc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,8 +9,8 @@ authors = [
     {name="Zhang Yunjun", email="yunjunz@outlook.com"},
     {name="Dennis Milbert"},
 ]
-readme = "README.md"
 requires-python = ">=3.8"
+
 keywords = ["solid Earth tides", "deformation", "geodesy", "geophysics"]
 license = {text = "GPL-3.0-or-later"}
 classifiers = [
@@ -25,7 +25,7 @@ classifiers = [
 # see section: setuptools_scm
 # https://setuptools.pypa.io/en/latest/userguide/pyproject_config.html#dynamic-metadata
 # dependencies will be read from text files
-dynamic = ["version", "dependencies", "optional-dependencies"]
+dynamic = ["version", "readme", "dependencies", "optional-dependencies"]
 
 [project.urls]
 "Homepage" = "https://github.com/insarlab/PySolid"
@@ -37,6 +37,7 @@ zip-safe = false
 
 [tool.setuptools.dynamic]
 dependencies = { file = ["requirements.txt"] }
+readme = { file = ["README.md"], content-type = "text/markdown" }
 
 # extra requirements: `pip install pysolid[docs]` or `pip install .[docs,test]`
 # note: the [docs] syntax requires setuptools>=64.0, thus, not working yet.
diff --git a/setup.py b/setup.py
deleted file mode 100644
index 950ba53..0000000
--- a/setup.py
+++ /dev/null
@@ -1,56 +0,0 @@
-# Author: Zhang Yunjun, Jan 2021
-# Copyright 2020, by the California Institute of Technology.
-
-# always prefer setuptools over distutils
-import setuptools
-from skbuild import setup
-
-# read the contents of README file
-def readme():
-    with open("README.md") as f:
-        return f.read()
-
-setup(
-    ## add the following redundant setup for setuptools<60, the latter is required for numpy.distutils
-    name="pysolid",
-    description="A Python wrapper for solid to compute solid Earth tides",
-    url="https://github.com/insarlab/PySolid",
-    long_description=readme(),
-    long_description_content_type="text/markdown",
-    author="Zhang Yunjun, Dennis Milbert",
-    author_email="yunjunz@outlook.com",
-    license="GPL-3.0-or-later",
-    license_files=("LICENSE",),
-
-    classifiers=[
-        "Development Status :: 4 - Beta",
-        "Intended Audience :: Science/Research",
-        "Topic :: Scientific/Engineering",
-        "License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)",
-        "Operating System :: OS Independent",
-        "Programming Language :: Python :: 3",
-    ],
-    keywords="solid Eartth tides, deformation, geodesy, geophysics",
-
-    project_urls={
-        "Bug Reports": "https://github.com/insarlab/PySolid/issues",
-        "Source": "https://github.com/insarlab/PySolid",
-    },
-
-    # dependencies
-    python_requires=">=3.8",
-    install_requires=[
-        "numpy",
-        "scipy",
-    ],
-
-    # package discovery
-    packages=setuptools.find_packages("src"),  # include all packages under src
-    package_dir={"": "src"},                   # tell distutils packages are under src
-
-    # data files
-    include_package_data=True,
-    package_data={
-        "pysolid": ["solid.for"],
-    },
-)
diff --git a/src/pysolid/point.py b/src/pysolid/point.py
index 77b4df8..3a68d9e 100644
--- a/src/pysolid/point.py
+++ b/src/pysolid/point.py
@@ -203,6 +203,7 @@ def plot_solid_earth_tides_point(dt_out, tide_e, tide_n, tide_u, lalo=None,
     if lalo:
         axs[0].set_title('solid Earth tides at (N{}, E{})'.format(lalo[0], lalo[1]), fontsize=12)
     fig.tight_layout()
+    fig.align_ylabels()
 
     # output
     if out_fig: