diff --git a/requirements.txt b/requirements.txt
index 1bd5448..9263ff0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 memory-profiler==0.55.0
-psutil==5.7.3
+psutil==5.9.3
 objgraph==3.4.1
 Pympler==0.8