diff --git a/pyproject.toml b/pyproject.toml
index 468d64cc..a62acafc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -77,7 +77,7 @@ optional-dependencies.dev = [
     "ty==0.0.17",
     "types-pyyaml==6.0.12.20250915",
     "vulture==2.14",
-    "vws-python-mock==2026.2.15.4",
+    "vws-python-mock==2026.2.15.5",
     "vws-test-fixtures==2023.3.5",
     "yamlfix==1.19.1",
     "zizmor==1.22.0",