diff --git a/.ci_support/environment-docs.yml b/.ci_support/environment-docs.yml
index 32e2a3d33..6746bb8c3 100644
--- a/.ci_support/environment-docs.yml
+++ b/.ci_support/environment-docs.yml
@@ -9,7 +9,7 @@ dependencies:
 - ase =3.23.0
 - atomistics =0.1.32
 - defusedxml =0.7.1
-- h5py =3.11.0
+- h5py =3.12.1
 - matplotlib-base =3.9.2
 - mendeleev =0.18.1
 - mp-api =0.42.2
diff --git a/.ci_support/environment.yml b/.ci_support/environment.yml
index aa8fe0aea..bfe36ebe2 100644
--- a/.ci_support/environment.yml
+++ b/.ci_support/environment.yml
@@ -7,7 +7,7 @@ dependencies:
 - coverage
 - codacy-coverage
 - defusedxml =0.7.1
-- h5py =3.11.0
+- h5py =3.12.1
 - matplotlib-base =3.9.2
 - mendeleev =0.18.1
 - mp-api =0.42.2
diff --git a/binder/environment.yml b/binder/environment.yml
index c80976a91..b7cd0d0e4 100644
--- a/binder/environment.yml
+++ b/binder/environment.yml
@@ -5,7 +5,7 @@ dependencies:
 - ase =3.23.0
 - atomistics =0.1.32
 - defusedxml =0.7.1
-- h5py =3.11.0
+- h5py =3.12.1
 - matplotlib-base =3.9.2
 - mendeleev =0.18.1
 - mp-api =0.42.2