diff --git a/.ci_support/environment.yml b/.ci_support/environment.yml
index 7732ee154..aa928fcbb 100644
--- a/.ci_support/environment.yml
+++ b/.ci_support/environment.yml
@@ -9,7 +9,7 @@ dependencies:
 - matplotlib-base =3.10.8
 - nglview =3.1.4
 - notebook
-- numpy =2.3.5
+- numpy =2.4.0
 - phonopy =2.46.1
 - plotly =6.5.0
 - pymatgen =2025.10.7
@@ -17,6 +17,7 @@ dependencies:
 - scikit-learn =1.7.2
 - scipy =1.16.3
 - spglib =2.6.0
+- sparse =0.17.0
 - sqsgenerator =0.3
 - hatchling =1.27.0
 - hatch-vcs =0.5.0
diff --git a/.ci_support/environment_mini.yml b/.ci_support/environment_mini.yml
index c7678757d..97ff6afb2 100644
--- a/.ci_support/environment_mini.yml
+++ b/.ci_support/environment_mini.yml
@@ -3,7 +3,7 @@ channels:
 dependencies:
 - ase =3.27.0
 - coverage
-- numpy =2.3.5
+- numpy =2.4.0
 - scipy =1.16.3
 - hatchling =1.27.0
 - hatch-vcs =0.5.0
diff --git a/pyproject.toml b/pyproject.toml
index 197e17a5b..58096faeb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,7 +25,7 @@ classifiers = [
 ]
 dependencies = [
     "ase==3.27.0",
-    "numpy==2.3.5",
+    "numpy==2.4.0",
     "scipy==1.16.3",
 ]
 dynamic = ["version"]