diff --git a/requirements-dev.txt b/requirements-dev.txt
index 6c52bc6..809cd41 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,4 +1,4 @@
 -r requirements.txt
 
 # Build tooling for local executable generation.
-PyInstaller>=6.0
+PyInstaller>=6.21.0