diff --git a/Cargo.toml b/Cargo.toml
index c28bcfae3d822844be409bf9c946258b4ff18698..28e7ab867343cca968fe958faddcabc70318fd59 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,6 +18,7 @@ serde = { version = "1.0.112", features = ["derive"] }
 getrandom = "0.1.14" # tiny crate. used to guess controller-id
 take_mut = "0.2.2"
 indexmap = "1.3.0" # hashsets/hashmaps with efficient arbitrary element removal
+replace_with = "0.1.5"
 
 # network
 integer-encoding = "1.0.7"