diff --git a/test/turing/Project.toml b/test/turing/Project.toml
index 0734d8dc3..c5d07df55 100644
--- a/test/turing/Project.toml
+++ b/test/turing/Project.toml
@@ -10,6 +10,7 @@ Turing = "fce5fe82-541a-59a6-adf8-730c64b5f9a0"
 
 [compat]
 DynamicPPL = "0.24, 0.25, 0.26, 0.27"
+MCMCChains = "6"
 ReverseDiff = "1.15"
 Turing = "0.33"
 julia = "1.7"