diff --git a/src/pas/plugins/passwordstrength/plugins.py b/src/pas/plugins/passwordstrength/plugins.py
index d4d0bb5..303154e 100644
--- a/src/pas/plugins/passwordstrength/plugins.py
+++ b/src/pas/plugins/passwordstrength/plugins.py
@@ -3,7 +3,10 @@
 from OFS.Cache import Cacheable
 from pas.plugins.passwordstrength import _
 from plone import api
-from plone.base.utils import safe_text
+try:
+    from plone.base.utils import safe_text
+except ImportError:
+    from Products.CMFPlone.utils import safe_unicode
 from Products.PluggableAuthService.interfaces.plugins import IValidationPlugin
 
 # from pas.plugins.passwordstrength import logger