diff --git a/requirements.txt b/requirements.txt
index 7a7355a..0c66291 100755
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,8 +1,8 @@
 PySide2==5.15.1
+pyqtgraph==0.11.0
 numpy==1.19.1
 setuptools
 pandas==1.0.5
 networkx==2.4
 scikit-learn==0.23.1
 prettytable
-shiboken2