diff --git a/requirements.txt b/requirements.txt
index f4e1edb..5791a4a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 tsplib95==0.7.1
 networkx==2.5
 matplotlib==3.3.4
-numpy==1.20.1
\ No newline at end of file
+numpy==1.22.0
\ No newline at end of file