diff --git a/requirements.txt b/requirements.txt
index fd11228..c15584b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-PyInstaller==3.3.1
+PyInstaller==3.6
 future==0.16.0
 numpy==1.14.3
 scipy==1.0.1