diff --git a/pyproject.toml b/pyproject.toml
index 737a62de025301714a73f82afaab4bb551290dbe..96cee07d3bb192b77fea8ac4df73081d8bf98417 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,7 +9,7 @@ repository = "https://git.leximpact.dev/openfisca/openfisca-france-reforms"
 
 [tool.poetry.dependencies]
 python = "^3.7"
-openfisca-france = "*"
+openfisca-france = "^79.0.3"
 
 [tool.poetry.dev-dependencies]
 black = { version = "*", allow-prereleases = true }