diff --git a/Project.toml b/Project.toml
index bae78a05..b83a1fe6 100644
--- a/Project.toml
+++ b/Project.toml
@@ -27,7 +27,7 @@ InferenceObjects = "0.4.13"
 MCMCChains = "6, 7"
 MCMCDiagnosticTools = "0.3.4"
 PSIS = "0.9.1"
-PosteriorStats = "0.3"
+PosteriorStats = "0.3, 0.4"
 Reexport = "1.2"
 Requires = "1.3"
 SampleChains = "0.5"