diff --git a/setup.py b/setup.py
index 073f0cbbc..c6aa15f27 100644
--- a/setup.py
+++ b/setup.py
@@ -100,7 +100,7 @@ setup(
             "hypothesis>=5.8,<7",
             "parver>=0.1,<2.0",
             "pdoc>=4.0.0",
-            "pyinstaller==4.3",
+            "pyinstaller==4.4",
             "pytest-asyncio>=0.10.0,<0.16,!=0.14",
             "pytest-cov>=2.7.1,<3",
             "pytest-timeout>=1.3.3,<2",