diff --git a/test/Project.toml b/test/Project.toml
index af676c683..61c5c22d4 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -34,7 +34,7 @@ ComponentArrays = ">= 0.13.9"
 DiffEqFlux = ">= 2"
 Flux = "0.13, 0.14, 0.15"
 IterTools = ">= 1.3.0"
-Lux = ">= 0.4.50"
+Lux = "1.4"
 Optim = ">= 1.4.1"
 Optimisers = ">= 0.2.5"
 OrdinaryDiffEq = ">= 5"