diff --git a/monte_carlo_gradients/requirements.txt b/monte_carlo_gradients/requirements.txt
index 3aac5c6..fb01afc 100644
--- a/monte_carlo_gradients/requirements.txt
+++ b/monte_carlo_gradients/requirements.txt
@@ -1,6 +1,6 @@
 absl-py==0.7.1
 dm-sonnet==1.34
-numpy==1.16.4
+numpy==1.22.0
 scipy==1.4.1
 scikit-learn==0.21
 tensorflow==1.15.2