diff --git a/scripts/dts/python-devicetree/tox.ini b/scripts/dts/python-devicetree/tox.ini
index 54b08ec0949..b2612487ac7 100644
--- a/scripts/dts/python-devicetree/tox.ini
+++ b/scripts/dts/python-devicetree/tox.ini
@@ -5,7 +5,7 @@ envlist=py3
 deps =
     setuptools-scm
     pytest
-    types-PyYAML
+    types-PyYAML==6.0.7
     mypy
 setenv =
     TOXTEMPDIR={envtmpdir}