diff --git a/pyproject.toml b/pyproject.toml
index f2330cf..1fa2c29 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -152,7 +152,11 @@ ignore_missing_imports = true
 allow_redefinition = true
 disable_error_code = "empty-body"
 
-[edgetest.envs.core]
+[tool.edgetest]
+exclude_newer = "3 days"
+
+[[tool.edgetest.env]]
+name = "core"
 extras = [
     "tests",
 ]
@@ -167,7 +171,8 @@ upgrade = [
     "tomlkit",
 ]
 
-[edgetest.envs.low]
+[[tool.edgetest.env]]
+name = "low"
 extras = [
     "tests",
 ]