diff --git a/requirements.txt b/requirements.txt
index 7799ae6..3691de4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,6 @@ qiskit-algorithms>=0.2.0
 qiskit-optimization>=0.6.0
 scipy>=1.4
 numpy>=1.17
-psutil>=5
 fastdtw
 setuptools>=40.1.0
 pandas