diff --git a/Project.toml b/Project.toml
index 6138b29..f325469 100644
--- a/Project.toml
+++ b/Project.toml
@@ -18,6 +18,7 @@ QuantEcon = "fcd29c91-0bd7-5a09-975d-7ac3f643a60c"
 TimerOutputs = "a759f4b9-e2f1-59dc-863e-4aeb61b1ea8f"
 
 [compat]
+Plots = "1.15"
 julia = "1"
 
 [extras]