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
diff --git a/requirements.txt b/requirements.txt
index d1655a6..c3a758a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ pefile==2017.11.5
 pexpect==4.4.0
 pkg-resources==0.0.0
 ptyprocess==0.5.2
-PyInstaller==3.4
+PyInstaller==3.6
 pylru==1.0.9
 pyparsing==2.2.0
 PyYAML==5.4