diff --git a/crates/nostr-sdk-net/src/lib.rs b/crates/nostr-sdk-net/src/lib.rs
index 12cba313a..6c5c0c528 100644
--- a/crates/nostr-sdk-net/src/lib.rs
+++ b/crates/nostr-sdk-net/src/lib.rs
@@ -3,6 +3,8 @@
 
 //! Nostr SDK Network
 
+#![forbid(unsafe_code)]
+
 pub extern crate futures_util;
 
 #[cfg(not(target_arch = "wasm32"))]
diff --git a/crates/nostr-sdk/src/lib.rs b/crates/nostr-sdk/src/lib.rs
index 41dfefb8b..309f8884a 100644
--- a/crates/nostr-sdk/src/lib.rs
+++ b/crates/nostr-sdk/src/lib.rs
@@ -1,6 +1,7 @@
 // Copyright (c) 2022-2023 Yuki Kishimoto
 // Distributed under the MIT software license
 
+#![forbid(unsafe_code)]
 #![warn(missing_docs)]
 #![warn(rustdoc::bare_urls)]
 
diff --git a/crates/nostr/src/lib.rs b/crates/nostr/src/lib.rs
index 048142451..931180321 100644
--- a/crates/nostr/src/lib.rs
+++ b/crates/nostr/src/lib.rs
@@ -3,6 +3,7 @@
 
 //! Rust implementation of the Nostr protocol.
 
+#![forbid(unsafe_code)]
 #![warn(missing_docs)]
 #![warn(rustdoc::bare_urls)]
 #![cfg_attr(not(feature = "std"), no_std)]