diff --git a/requirements_dev.txt b/requirements_dev.txt
index 2d7541e..551c089 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -5,7 +5,7 @@ flake8==3.7.9
 ipython==7.11.1
 isort==4.3.21
 pip==19.3.1
-PyInstaller==3.5
+PyInstaller==3.6
 pytz==2019.3
 requests==2.22.0
 setuptools==44.0.0