diff --git a/benchmarks/PINNOptimizers/Project.toml b/benchmarks/PINNOptimizers/Project.toml
index c196cbf4e..c21141ca2 100644
--- a/benchmarks/PINNOptimizers/Project.toml
+++ b/benchmarks/PINNOptimizers/Project.toml
@@ -9,7 +9,7 @@ Plots = "91a5bcdd-55d7-5caf-9e0b-520d859cae80"
 SciMLBenchmarks = "31c91b34-3c75-11e9-0341-95557aab0344"
 
 [compat]
-Lux = "0.4"
+Lux = "0.4, 0.5"
 ModelingToolkit = "8"
 NeuralPDE = "5"
 Optimization = "3"