diff --git a/pyproject.toml b/pyproject.toml
index 285ca60..7abd621 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -69,7 +69,7 @@ optional-dependencies.dev = [
     "sybil==9.1.0",
     "types-requests==2.32.0.20241016",
     "vulture==2.14",
-    "vws-python-mock==2025.2.18",
+    "vws-python-mock==2025.2.21",
     "yamlfix==1.17.0",
 ]
 optional-dependencies.release = [ "check-wheel-contents==0.6.1" ]