diff --git a/Code_Paper_Figures/Supplement/S3_Fit_Algorithm/requirements.txt b/Code_Paper_Figures/Supplement/S3_Fit_Algorithm/requirements.txt
index 26d897a..1ae9d0d 100644
--- a/Code_Paper_Figures/Supplement/S3_Fit_Algorithm/requirements.txt
+++ b/Code_Paper_Figures/Supplement/S3_Fit_Algorithm/requirements.txt
@@ -69,7 +69,7 @@ plotly==2.6.0
 pox==0.2.3
 ppft==1.6.4.7.1
 prompt-toolkit==1.0.15
-psutil==5.4.5
+psutil==5.6.6
 ptyprocess==0.5.2
 pycodestyle==2.4.0
 pycosat==0.6.3