diff --git a/Project.toml b/Project.toml
index b638038..a0a5615 100644
--- a/Project.toml
+++ b/Project.toml
@@ -8,6 +8,7 @@ PyCall = "438e738f-606a-5dbb-bf0a-cddfbfd45ab0"
 ReplMaker = "b873ce64-0db9-51f5-a568-4457d8e49576"
 
 [compat]
+PyCall = "1.91"
 julia = "1"
 
 [extras]