diff --git a/tox.ini b/tox.ini
index 16f3cee..ea22f06 100644
--- a/tox.ini
+++ b/tox.ini
@@ -66,7 +66,6 @@ download = True
 setenv =
     PYTHONDEVMODE=1
     PIP_DISABLE_PIP_VERSION_CHECK=1
-    UNSAFE_PYO3_SKIP_VERSION_CHECK=1
 
 [testenv:py312]
 download = True