diff --git a/Project.toml b/Project.toml
index 2ac37e8e95..67e5937f1d 100644
--- a/Project.toml
+++ b/Project.toml
@@ -36,7 +36,7 @@ JSONSchema = "1"
 LinearAlgebra = "1"
 MutableArithmetics = "1"
 NaNMath = "0.3, 1"
-OrderedCollections = "1.1"
+OrderedCollections = "1.1, 2.0"
 ParallelTestRunner = "2.4.1"
 PrecompileTools = "1.0.1"
 Printf = "1"