diff --git a/.ci_support/environment.yml b/.ci_support/environment.yml
index b868f24f4..59b2475db 100644
--- a/.ci_support/environment.yml
+++ b/.ci_support/environment.yml
@@ -11,7 +11,7 @@ dependencies:
 - notebook
 - numpy =2.4.3
 - phonopy =3.5.0
-- plotly =6.6.0
+- plotly =6.7.0
 - pymatgen =2026.3.23
 - pyscal3 =3.3.2
 - scikit-learn =1.8.0
diff --git a/pyproject.toml b/pyproject.toml
index 8837126b0..56f5c2b2b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,7 +44,7 @@ grainboundary = [
 pyscal = ["pyscal3==3.3.2"]
 nglview = ["nglview==4.0.1"]
 matplotlib = ["matplotlib==3.10.8"]
-plotly = ["plotly==6.6.0"]
+plotly = ["plotly==6.7.0"]
 clusters = ["scikit-learn==1.8.0"]
 symmetry = ["spglib==2.7.0"]
 surface = [