diff --git a/requirements.txt b/requirements.txt
index ae835ec..20dcc81 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,4 +7,4 @@ rdkit==2023.9.5
 pdb2pqr==3.6.2
 plip==2.3.0
 PySide6-Essentials==6.4.3
-pyinstaller==6.7.0
+pyinstaller==5.13.2