diff --git a/SBMLparser/requirements_win.txt b/SBMLparser/requirements_win.txt
index 155b3c2..b73490a 100644
--- a/SBMLparser/requirements_win.txt
+++ b/SBMLparser/requirements_win.txt
@@ -7,7 +7,7 @@ networkx==2.1
 numpy==1.14.2
 pefile==2017.11.5
 ptyprocess==0.5.2
-PyInstaller==3.3.1
+PyInstaller==3.6
 pylru==1.0.9
 pyparsing==2.2.0
 pywin32==223