diff --git a/README.md b/README.md
index b6c3466..d8b409c 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 
 
-# Unit-aware System for Brain Dynamics Programming
+# The Unit System for Brain Dynamics Programming
 
 <p align="center">
   	<img alt="Header image of brainunit." src="https://github.com/brainpy/brainunit/blob/main/docs/_static/brainunit.jpg" width=50%>
diff --git a/pyproject.toml b/pyproject.toml
index c0e6453..4dc911f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools", "numpy", 'jax', 'jaxlib', 'braincore']
+requires = ["setuptools", "numpy", 'jax', 'jaxlib', 'brainstate']
 build-backend = "setuptools.build_meta"
 
 
@@ -17,7 +17,7 @@ universal = true
 
 [project]
 name = "brainunit"
-description = "A Unit-aware System for Brain Dynamics Programming."
+description = "The Unit System for Brain Dynamics Programming."
 readme = 'README.md'
 license = { text = 'Apache-2.0 license' }
 requires-python = '>=3.9'
@@ -48,7 +48,7 @@ dependencies = [
     'jax',
     'jaxlib',
     'numpy',
-    'braincore',
+    'brainstate',
 ]
 
 dynamic = ['version']
diff --git a/setup.py b/setup.py
index 751d0c3..4eb2d59 100644
--- a/setup.py
+++ b/setup.py
@@ -49,7 +49,7 @@
 setup(
   name='brainunit',
   version=version,
-  description='A Unit-aware System for Brain Dynamics Programming',
+  description='The Unit System for Brain Dynamics Programming',
   long_description=README,
   long_description_content_type="text/markdown",
   author='BrainPy Team',