diff --git a/docs/requirements.txt b/docs/requirements.txt
index c7d7189..0c5a1dd 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,7 +1,7 @@
 sphinx_markdown_tables
 lmfit==1.0.1
 matplotlib==3.2.1
-numpy==1.18.4
+numpy==1.22.0
 pathos==0.2.5
 scipy==1.4.1
 tqdm==4.46.0
diff --git a/phlab.egg-info/requires.txt b/phlab.egg-info/requires.txt
index a4bb87f..a3c1d2d 100644
--- a/phlab.egg-info/requires.txt
+++ b/phlab.egg-info/requires.txt
@@ -1,6 +1,6 @@
 lmfit==1.0.1
 matplotlib==3.2.1
-numpy==1.18.4
+numpy==1.22.0
 pathos==0.2.5
 scipy==1.4.1
 tqdm==4.46.0
diff --git a/requirements.txt b/requirements.txt
index a4bb87f..a3c1d2d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 lmfit==1.0.1
 matplotlib==3.2.1
-numpy==1.18.4
+numpy==1.22.0
 pathos==0.2.5
 scipy==1.4.1
 tqdm==4.46.0