diff --git a/rules/klayout/requirements.test.txt b/rules/klayout/requirements.test.txt
index 3f6804c..39af1e5 100644
--- a/rules/klayout/requirements.test.txt
+++ b/rules/klayout/requirements.test.txt
@@ -1,4 +1,4 @@
 docopt==0.6.2
 pandas==1.3.4
 sympy==1.9
-numpy==1.20.3
+numpy==1.22.0