diff --git a/pixi.toml b/pixi.toml
index f251c9e9..385b9f52 100644
--- a/pixi.toml
+++ b/pixi.toml
@@ -3,6 +3,8 @@ name = "VirtualShip"
 preview = ["pixi-build"]
 channels = ["conda-forge"]
 platforms = ["win-64", "linux-64", "osx-64", "osx-arm64"]
+exclude-newer = "5d" # security pre-caution against compromised packages
+requires-pixi = ">=0.67.0"
 
 [package]
 name = "virtualship"