diff --git a/2018/requirements.txt b/2018/requirements.txt
index 9e1201e..b743f6b 100644
--- a/2018/requirements.txt
+++ b/2018/requirements.txt
@@ -1,4 +1,4 @@
 ipython==7.1.1
 networkx==2.2
-numpy==1.15.4
+numpy==1.22.0
 regex==2018.11.6