diff --git a/abci/Cargo.toml b/abci/Cargo.toml
index 3c35f12..1db932d 100644
--- a/abci/Cargo.toml
+++ b/abci/Cargo.toml
@@ -2,6 +2,7 @@
 name = "tenderdash-abci"
 version = "0.13.1"
 edition = "2021"
+rust-version = "1.73"
 license = "Apache-2.0"
 readme = "README.md"
 categories = ["cryptography::cryptocurrencies", "network-programming"]
diff --git a/proto-compiler/Cargo.toml b/proto-compiler/Cargo.toml
index 3e4e01c..384a6cb 100644
--- a/proto-compiler/Cargo.toml
+++ b/proto-compiler/Cargo.toml
@@ -3,6 +3,7 @@ name = "tenderdash-proto-compiler"
 version = "0.1.0"
 authors = ["Informal Systems <hello@informal.systems>"]
 edition = "2021"
+rust-version = "1.73"
 description = "Internal tool to download and build tenderdash protobuf definitions; used by proto/build.rs"
 publish = false
 
diff --git a/proto/Cargo.toml b/proto/Cargo.toml
index 8f0530b..10b2f99 100644
--- a/proto/Cargo.toml
+++ b/proto/Cargo.toml
@@ -2,6 +2,7 @@
 name = "tenderdash-proto"
 version = "0.13.2"
 edition = "2021"
+rust-version = "1.73"
 license = "Apache-2.0"
 repository = "https://github.com/dashpay/rs-tenderdash-abci/tree/main/proto"
 readme = "README.md"