diff --git a/tendermint/Cargo.toml b/tendermint/Cargo.toml
index 70a2ff517..e1164b55a 100644
--- a/tendermint/Cargo.toml
+++ b/tendermint/Cargo.toml
@@ -38,8 +38,8 @@ bytes = "0.5"
 chrono = { version = "0.4", features = ["serde"] }
 futures = "0.3"
 once_cell = "1.3"
-prost-amino = "0.5"
-prost-amino-derive = "0.5"
+prost-amino = "0.6"
+prost-amino-derive = "0.6"
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 serde_bytes = "0.11"