diff --git a/pyproject.toml b/pyproject.toml
index fe3b4fc71..76a94e34a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -92,7 +92,7 @@ dev = [
     "types-requests==2.33.0.20260906",
     "vale==3.21.0.0",
     "vulture==2.16",
-    "vws-python-mock==2026.9.8.1",
+    "vws-python-mock==2026.9.12",
     "vws-test-fixtures==2026.8.26",
     "yamlfix==1.19.1",
     "zizmor==1.30.1",