diff --git a/requirements.txt b/requirements.txt
index f7db43a..0cb0325 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ jupytext==1.3.0
 kiwisolver==1.1.0
 matplotlib==3.1.2
 mizani==0.6.0
-numpy==1.17.4
+numpy==1.22.0
 palettable==3.3.0
 pandas==0.25.3
 patsy==0.5.1