diff --git a/pyproject.toml b/pyproject.toml
index e442597..32fe444 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,7 +13,7 @@ dependencies = [
     "pandas",
     "matplotlib",
     "sqlalchemy",
-    "cocluto >= 1.4",
+    "cocluto >= 1.6",
 #    "cocluto@git+https://git.ipr.univ-rennes.fr/cellinfo/cocluto"
     "starbench >= 1.0.1"
 #    "starbench@git+https://github.com/g-raffy/starbench"