diff --git a/environment.yml b/environment.yml
index 7bda1de..7a0bea6 100644
--- a/environment.yml
+++ b/environment.yml
@@ -12,7 +12,7 @@ dependencies:
   - jupyter
   - matplotlib<3.5
   - mkl>=2021.3.0
-  - numpy>=1.21
+  - numpy>=1.21,<1.24
   - Pillow
   - pip
   - pymatsolver
diff --git a/requirements.txt b/requirements.txt
index 696f5af..1f429ed 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-numpy>=1.21
+numpy>=1.21,<1.24
 scipy>=1.7
 matplotlib<3.5
 ipywidgets>=0.6.0