diff --git a/requirements-dev.txt b/requirements-dev.txt
index 90e78e1..99aa919 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,7 +1,7 @@
 bump2version==1.0.1
 numpy==1.24.1
 packaging==23.0
-h5py==3.8.0
+h5py==3.9.0
 pytest-cov==4.0.0
 pytest==7.2.1
 coveralls==3.3.1
diff --git a/requirements.txt b/requirements.txt
index 847cf9c..4e7f9e5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
 numpy==1.24.1
 packaging==23.0
-h5py==3.8.0
+h5py==3.9.0