diff --git a/openapi/Cargo.toml b/openapi/Cargo.toml
index 33607e271..d7fc1f3e6 100644
--- a/openapi/Cargo.toml
+++ b/openapi/Cargo.toml
@@ -15,7 +15,7 @@ serde_json = "1"
 anyhow = "1.0.34"
 tracing = "0.1.36"
 openapiv3 = "1.0.1"
-indexmap = "1"
+indexmap = "2"
 tracing-subscriber = "0.3.15"
 structopt = "0.3.26"
 indoc = "1.0.7"
\ No newline at end of file