diff --git a/Project.toml b/Project.toml
index 62bb9694..a5232db9 100644
--- a/Project.toml
+++ b/Project.toml
@@ -13,6 +13,6 @@ StatsFuns = "4c63d2b9-4356-54db-8cca-17b64c39e42c"
 [compat]
 AbstractMCMC = "2, 3"
 Distributions = "0.23, 0.24, 0.25"
-Libtask = "0.5"
+Libtask = "0.5.3"
 StatsFuns = "0.9"
 julia = "1.3"