diff --git a/pyproject.toml b/pyproject.toml
index 676aa8ddf617dcc6bf2425c610b1459f88c7aa8d..a8279dd2c32e9b1939863c72702a3bd03cee383d 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 = "^77.3.1"
 
 [tool.poetry.dev-dependencies]
 black = { version = "*", allow-prereleases = true }