diff --git a/requirements.txt b/requirements.txt
index 3325846..158ec75 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 matplotlib==2.2.4
 numpy==1.16.4
-PyInstaller==3.4
+PyInstaller==3.6
 pyparsing==2.4.0
 pyserial==3.4
 python-dateutil==2.8.0