diff --git a/pyproject.toml b/pyproject.toml
index 79c5956..5481663 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -42,7 +42,7 @@ dependencies = [
     "ccflow>=0.5.2",
     "chatom",
     "croniter",
-    "csp>=0.9,<1",
+    "csp>=0.16.0,<1",
     "csp-gateway>=2.5,<2.7",
     "dateparser",
     "hydra-core",