diff --git a/crates/backend/Cargo.toml b/crates/backend/Cargo.toml
index 5aa1a18e..77661408 100644
--- a/crates/backend/Cargo.toml
+++ b/crates/backend/Cargo.toml
@@ -6,6 +6,7 @@ license = "MIT"
 name = "napi-derive-backend"
 readme = "README.md"
 repository = "https://github.com/napi-rs/napi-rs"
+rust-version = "1.57"
 version = "1.0.32"
 
 [package.metadata.workspaces]
diff --git a/crates/build/Cargo.toml b/crates/build/Cargo.toml
index bc31e34c..dd6bd73b 100644
--- a/crates/build/Cargo.toml
+++ b/crates/build/Cargo.toml
@@ -8,6 +8,7 @@ license = "MIT"
 name = "napi-build"
 readme = "README.md"
 repository = "https://github.com/napi-rs/napi-rs"
+rust-version = "1.57"
 version = "2.0.0"
 
 [package.metadata.workspaces]
diff --git a/crates/macro/Cargo.toml b/crates/macro/Cargo.toml
index 043a6ee4..c8e79c77 100644
--- a/crates/macro/Cargo.toml
+++ b/crates/macro/Cargo.toml
@@ -7,6 +7,7 @@ license = "MIT"
 name = "napi-derive"
 readme = "README.md"
 repository = "https://github.com/napi-rs/napi-rs"
+rust-version = "1.57"
 version = "2.4.1"
 
 [package.metadata.workspaces]
diff --git a/crates/napi/Cargo.toml b/crates/napi/Cargo.toml
index e29bcb8c..46ec876b 100644
--- a/crates/napi/Cargo.toml
+++ b/crates/napi/Cargo.toml
@@ -7,6 +7,7 @@ license = "MIT"
 name = "napi"
 readme = "README.md"
 repository = "https://github.com/napi-rs/napi-rs"
+rust-version = "1.57"
 version = "2.4.3"
 
 [package.metadata.docs.rs]
diff --git a/crates/sys/Cargo.toml b/crates/sys/Cargo.toml
index 0e2cea78..7da4e8ef 100644
--- a/crates/sys/Cargo.toml
+++ b/crates/sys/Cargo.toml
@@ -8,6 +8,7 @@ license = "MIT"
 name = "napi-sys"
 readme = "README.md"
 repository = "https://github.com/napi-rs/napi-rs"
+rust-version = "1.57"
 version = "2.2.2"
 
 [features]