diff --git a/pyproject.toml b/pyproject.toml
index 1365fb6..4030747 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -20,7 +20,7 @@ dependencies = [
     "pyscf==1.7.5",
     "h5py==3.0",
     "scipy==1.4.1",
-    "numpy==1.18",
+    "numpy==1.22.0",
     "opt_einsum",
     "jupyter",
     "sphinx",
diff --git a/requirements.txt b/requirements.txt
index 65a74f8..7dc1f24 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 pyscf==1.7.5
 h5py==3.0
 scipy==1.4.1
-numpy==1.18
+numpy==1.22.0
 opt_einsum
 jupyter
 sphinx