diff --git a/Project.toml b/Project.toml
index 8d649b5..792af95 100644
--- a/Project.toml
+++ b/Project.toml
@@ -30,7 +30,7 @@ FileIO = "1.0.7, 1.1, 1.2, ^1.3"
 HDF5 = "0.12, 0.13, 0.14, 0.15"
 JLD2 = "^0.1.3, 0.2, 0.3"
 ModelConstructors = "0.1.10, 0.1.11, 0.1.12, 0.2"
-PDMats = "^0.9.10, 0.10"
+PDMats = "^0.9.10, 0.10, 0.11"
 Roots = "0.7, 0.8, 1"
 StatsBase = "0.29, 0.30, 0.31, 0.32.0, 0.33.0"
 julia = "1"