diff --git a/julia/run.jl b/julia/run.jl
index 488816c..58d2449 100644
--- a/julia/run.jl
+++ b/julia/run.jl
@@ -1,4 +1,5 @@
 using HetaSimulator, Plots
+ENV["GKSwstype"] = "100"
 
 model = load_jlmodel("../dist/julia/model.jl")