diff --git a/gdnative-core/Cargo.toml b/gdnative-core/Cargo.toml
index 3b2eb9f77..e0938557d 100644
--- a/gdnative-core/Cargo.toml
+++ b/gdnative-core/Cargo.toml
@@ -26,7 +26,7 @@ approx = "0.5"
 atomic-take = "1"
 bitflags = "1"
 glam = "0.24"
-indexmap = "1"
+indexmap = "2"
 inventory = { version = "0.3", optional = true }
 libc = "0.2"
 once_cell = "1"