diff --git a/test/ext/ArviZMCMCChainsExt/Project.toml b/test/ext/ArviZMCMCChainsExt/Project.toml
index b5c741f5..63e15fb5 100644
--- a/test/ext/ArviZMCMCChainsExt/Project.toml
+++ b/test/ext/ArviZMCMCChainsExt/Project.toml
@@ -8,7 +8,7 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [compat]
 ArviZ = "0.10.3"
-DimensionalData = "0.24, 0.25"
+DimensionalData = "0.24, 0.25, 0.26"
 MCMCChains = "6"
 OrderedCollections = "1"
 Random = "1.6"