diff --git a/pyproject.toml b/pyproject.toml
index c66da1b..41c195a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,7 +33,7 @@ dependencies = [
     "jsonschema>=4.23.0",
     "httpx>=0.28.0",
     "rich>=15.0.0",
-    "schemathesis>=3.28.0",
+    "schemathesis>=4.15.1",
     "hypothesis>=6.151.12",
     "deepdiff>=8.0.0",
     "jinja2>=3.1.6",