Index: pyproject-toml/Cargo.toml
===================================================================
--- pyproject-toml.orig/Cargo.toml
+++ pyproject-toml/Cargo.toml
@@ -40,7 +40,7 @@ version = "0.3.1"
 optional = true
 
 [dependencies.indexmap]
-version = "2.6.0"
+version = "2.2"
 features = ["serde"]
 
 [dependencies.pep440_rs]
