diff --git a/src/trove_classifiers/__init__.py b/src/trove_classifiers/__init__.py
index 809cff2..cb0477c 100644
--- a/src/trove_classifiers/__init__.py
+++ b/src/trove_classifiers/__init__.py
@@ -254,6 +254,7 @@
     "Framework :: Zope :: 3",
     "Framework :: Zope :: 4",
     "Framework :: Zope :: 5",
+    "Framework :: Zope :: 6",
     "Framework :: aiohttp",
     "Framework :: cocotb",
     "Framework :: napari",