diff --git a/savefile-test/Cargo.toml b/savefile-test/Cargo.toml
index cf9fae5..df7dc7f 100644
--- a/savefile-test/Cargo.toml
+++ b/savefile-test/Cargo.toml
@@ -16,7 +16,7 @@ savefile-derive = { path = "../savefile-derive", version = "=0.16.2" }
 bit-vec = "0.6"
 arrayvec="0.7"
 smallvec="*"
-indexmap="*"
+indexmap = { version = "1.9"}
 byteorder="*"
 rand="0.8"
 parking_lot="0.12"