diff --git a/Project.toml b/Project.toml
index 64e93bb3..ccac8067 100644
--- a/Project.toml
+++ b/Project.toml
@@ -24,5 +24,5 @@ ReachabilityAnalysis = "0.14.5 - 0.28"
 ReachabilityBase = "0.2.1 - 0.3"
 Reexport = "0.2, 1"
 Requires = "0.5, 1"
-TaylorModels = "0.7 - 0.8"
+TaylorModels = "0.7 - 0.8, 0.9"
 julia = "1.6"