diff --git a/Project.toml b/Project.toml
index d936c88a76..6f1e877f98 100644
--- a/Project.toml
+++ b/Project.toml
@@ -40,7 +40,7 @@ JuMP = "1"
 LinearAlgebra = "1"
 LoggingPolyglot = "0.3"
 MemoizedSerialization = "0.5"
-OrderedCollections = "1"
+OrderedCollections = "1, 2"
 PSRBridge = "=0.6.0"
 PSRClassesInterface = "0.17"
 ParametricOptInterface = "0.14, 0.15"