diff --git a/Project.toml b/Project.toml
index 838e8bb05..609f710b2 100644
--- a/Project.toml
+++ b/Project.toml
@@ -83,7 +83,7 @@ SMC = "0.1.10, ^0.1.11, 0.2"
 SpecialFunctions = "0.7, 0.8, 0.10, 1, 2"
 StateSpaceRoutines = "^0.3.1, 0.4"
 StatsBase = "0.29, 0.30, 0.31, 0.32.0, 0.33"
-StatsFuns = "0.8, 0.9"
+StatsFuns = "0.8, 0.9, 1.4"
 StatsPlots = "0.10, 0.11, 0.12, 0.13, 0.14"
 TimeZones = "^0.10, ^0.11, 1.0, 1.1, 1.2, 1.3"
 julia = "1"