diff --git a/Cargo.toml b/Cargo.toml
index aea24dd..4a1be54 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,7 +2,7 @@
 name = "caps"
 version = "0.5.6"
 edition = "2018"
-rust-version = "1.63"
+rust-version = "1.71"
 authors = ["Luca Bruno <lucab@lucabruno.net>"]
 license = "MIT/Apache-2.0"
 repository = "https://github.com/lucab/caps-rs"
@@ -32,3 +32,6 @@ pre-release-commit-message = "cargo: caps release {{version}}"
 sign-commit = true
 sign-tag = true
 tag-message = "caps {{version}}"
+
+[lints.rust]
+unexpected_cfgs = { level = "allow", check-cfg = ['cfg(target_arch, values("e2k"))'] }
diff --git a/src/nr.rs b/src/nr.rs
index 14846ee..1ffa322 100644
--- a/src/nr.rs
+++ b/src/nr.rs
@@ -125,3 +125,8 @@ pub const CAPSET: i64 = 91;
 pub const CAPGET: i64 = 90;
 #[cfg(target_arch = "loongarch64")]
 pub const CAPSET: i64 = 91;
+
+#[cfg(target_arch = "e2k")]
+pub const CAPGET: i64 = 184;
+#[cfg(target_arch = "e2k")]
+pub const CAPSET: i64 = 185;