diff --git a/.ci_support/environment.yml b/.ci_support/environment.yml
index 16c087b3b..09d356591 100644
--- a/.ci_support/environment.yml
+++ b/.ci_support/environment.yml
@@ -13,7 +13,7 @@ dependencies:
 - pymatgen =2023.12.18
 - pyscal =2.10.18
 - pyxtal =0.6.1
-- scikit-learn =1.3.2
+- scikit-learn =1.4.0
 - scipy =1.11.4
 - spglib =2.2.0
 - sqsgenerator =0.3
diff --git a/pyproject.toml b/pyproject.toml
index ee36d01e9..23bd4a720 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,7 +44,7 @@ pyscal = ["pyscal2==2.10.18"]
 nglview = ["nglview==3.1.1"]
 matplotlib = ["matplotlib==3.8.2"]
 plotly = ["plotly==5.18.0"]
-clusters = ["scikit-learn==1.3.2"]
+clusters = ["scikit-learn==1.4.0"]
 symmetry = ["spglib==2.2.0"]
 surface = [
     "spglib==2.2.0",