diff --git a/requirements.txt b/requirements.txt
index 8a87731..23e2d7b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 fcsparser==0.2.0
-numpy==1.17.3
+numpy==1.22.0
 pandas==0.25.3
 matplotlib==3.1.1
 pickleshare==0.7.5