diff --git a/Project.toml b/Project.toml
index 46eb830..9e017b4 100644
--- a/Project.toml
+++ b/Project.toml
@@ -42,7 +42,7 @@ DynamicHMC = "^2.1"
 FillArrays = "^0.8"
 ForwardDiff = "^0.10"
 LogDensityProblems = "^0.9, 0.10"
-MCMCChains = "^0.3.15, 0.4"
+MCMCChains = "^0.3.15, 0.4, 1.0"
 MCMCDiagnostics = "^0.3"
 Parameters = "^0.12"
 Reexport = "^0.2"