diff --git a/pyproject.toml b/pyproject.toml
index dcee8d8d3..d8fa92d65 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,7 +27,7 @@ dependencies = [
     "ruamel.yaml ~= 0.18.6",
     "pydantic ~= 2.9.2",
     "jinja2 ~= 3.1.4",
-    "tiramisu ~= 5.0.0"
+    "tiramisu >=5.0,<6"
 ]
 
 [project.optional-dependencies]