diff --git a/.ci_support/environment.yml b/.ci_support/environment.yml
index 92043d090..6975b3342 100644
--- a/.ci_support/environment.yml
+++ b/.ci_support/environment.yml
@@ -6,7 +6,7 @@ dependencies:
 - coveralls
 - coverage
 - codacy-coverage
-- matplotlib-base =3.7.2
+- matplotlib-base =3.8.0
 - nglview =3.0.6
 - numpy =1.23.5
 - phonopy =2.20.0
diff --git a/setup.py b/setup.py
index 0e6f1f8cf..f529ad7ef 100644
--- a/setup.py
+++ b/setup.py
@@ -31,7 +31,7 @@
     packages=find_packages(exclude=["*tests*", "*docs*", "*binder*", "*conda*", "*notebooks*", "*.ci_support*"]),
     install_requires=[
         'ase==3.22.1',
-        'matplotlib==3.7.2',  # ase already requires matplotlib
+        'matplotlib==3.8.0',  # ase already requires matplotlib
         'numpy==1.23.5',  # ase already requires numpy
         'scipy==1.11.2',  # ase already requires scipy
     ],