diff --git a/.ci_support/environment-docs.yml b/.ci_support/environment-docs.yml
index abb3cd157..695a6ce51 100644
--- a/.ci_support/environment-docs.yml
+++ b/.ci_support/environment-docs.yml
@@ -13,7 +13,7 @@ dependencies:
 - matplotlib-base =3.10.0
 - mendeleev =0.19.0
 - mp-api =0.45.1
-- numpy =1.26.4
+- numpy =2.2.3
 - pandas =2.2.3
 - phonopy =2.37.0
 - pint =0.24.4
diff --git a/.ci_support/environment.yml b/.ci_support/environment.yml
index c2b345231..2f04021c1 100644
--- a/.ci_support/environment.yml
+++ b/.ci_support/environment.yml
@@ -11,7 +11,7 @@ dependencies:
 - matplotlib-base =3.10.0
 - mendeleev =0.19.0
 - mp-api =0.45.1
-- numpy =1.26.4
+- numpy =2.2.3
 - pandas =2.2.3
 - phonopy =2.37.0
 - pint =0.24.4
diff --git a/binder/environment.yml b/binder/environment.yml
index 05023010e..e5a2ac1ec 100644
--- a/binder/environment.yml
+++ b/binder/environment.yml
@@ -9,7 +9,7 @@ dependencies:
 - matplotlib-base =3.10.0
 - mendeleev =0.19.0
 - mp-api =0.45.1
-- numpy =1.26.4
+- numpy =2.2.3
 - pandas =2.2.3
 - phonopy =2.37.0
 - pint =0.24.4
diff --git a/pyproject.toml b/pyproject.toml
index 627af080d..74cd5188b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -31,7 +31,7 @@ dependencies = [
     "matplotlib==3.10.0",
     "mendeleev==0.19.0",
     "mp-api==0.45.1",
-    "numpy==1.26.4",
+    "numpy==2.2.3",
     "pandas==2.2.3",
     "phonopy==2.37.0",
     "pint==0.24.4",