diff --git a/.ci_support/environment-docs.yml b/.ci_support/environment-docs.yml
index 301c12d37..749eb7a79 100644
--- a/.ci_support/environment-docs.yml
+++ b/.ci_support/environment-docs.yml
@@ -3,7 +3,7 @@ channels:
 dependencies:
 - ase =3.29.0
 - numpy =2.5.3
-- scipy =1.18.0
+- scipy =1.18.1
 - hatchling =1.32.4
 - hatch-vcs =0.5.0
 - myst-parser
diff --git a/.ci_support/environment-mini.yml b/.ci_support/environment-mini.yml
index 81ee762f3..59b99ce04 100644
--- a/.ci_support/environment-mini.yml
+++ b/.ci_support/environment-mini.yml
@@ -4,6 +4,6 @@ dependencies:
 - ase =3.29.0
 - coverage
 - numpy =2.5.3
-- scipy =1.18.0
+- scipy =1.18.1
 - hatchling =1.32.4
 - hatch-vcs =0.5.0
diff --git a/.ci_support/environment.yml b/.ci_support/environment.yml
index 4b4f1491c..d3ad43a64 100644
--- a/.ci_support/environment.yml
+++ b/.ci_support/environment.yml
@@ -15,7 +15,7 @@ dependencies:
 - pymatgen =2026.5.4
 - pyscal3 =3.3.2
 - scikit-learn =1.9.1
-- scipy =1.18.0
+- scipy =1.18.1
 - spglib =2.7.0
 - sqsgenerator =0.5.5
 - hatchling =1.32.4
diff --git a/binder/environment.yml b/binder/environment.yml
index 0b8c81c79..eb0d6c32c 100644
--- a/binder/environment.yml
+++ b/binder/environment.yml
@@ -13,7 +13,7 @@ dependencies:
 - pymatgen =2026.5.4
 - pyscal3 =3.3.2
 - scikit-learn =1.8.0
-- scipy =1.18.0
+- scipy =1.18.1
 - spglib =2.7.0
 - sqsgenerator =0.5.5
 - setuptools <80
diff --git a/pyproject.toml b/pyproject.toml
index 66c24f351..166d95a05 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,7 +26,7 @@ classifiers = [
 dependencies = [
     "ase==3.29.0",
     "numpy==2.5.3",
-    "scipy==1.18.0",
+    "scipy==1.18.1",
 ]
 dynamic = ["version"]