diff --git a/docs/requirements-docs.txt b/docs/requirements-docs.txt
index 432779f..792e034 100644
--- a/docs/requirements-docs.txt
+++ b/docs/requirements-docs.txt
@@ -13,7 +13,7 @@ recommonmark
 ipython
 
 matplotlib==3.1.1
-numpy==1.17.2
+numpy==1.22.0
 pandas==0.25.1
 pymc3==3.7
 seaborn==0.9.0