diff --git a/.ci_support/environment.yml b/.ci_support/environment.yml
index c09349ed0..310b85dcf 100644
--- a/.ci_support/environment.yml
+++ b/.ci_support/environment.yml
@@ -10,7 +10,7 @@ dependencies:
 - nglview =3.1.4
 - notebook
 - numpy =1.26.4
-- phonopy =2.34.0
+- phonopy =2.34.1
 - plotly =5.24.1
 - pymatgen =2024.11.13
 - pyscal3 =3.2.7
diff --git a/pyproject.toml b/pyproject.toml
index 06897db0a..4b9d5b14d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -52,7 +52,7 @@ surface = [
     "pymatgen==2024.11.13",
 ]
 phonopy = [
-    "phonopy==2.34.0",
+    "phonopy==2.34.1",
     "spglib==2.5.0",
 ]
 pyxtal = ["pyxtal==1.0.6"]