diff --git a/polkadot/node/primitives/src/lib.rs b/polkadot/node/primitives/src/lib.rs
index ee5aea96eede1c1c33c364e764ac19b12958d070..eb1096f249d4cd3a34fd2a9e20c5dfc6ce9d424c 100644
--- a/polkadot/node/primitives/src/lib.rs
+++ b/polkadot/node/primitives/src/lib.rs
@@ -59,7 +59,7 @@ pub use disputes::{
 /// relatively rare.
 ///
 /// The associated worker binaries should use the same version as the node that spawns them.
-pub const NODE_VERSION: &'static str = "1.15.3";
+pub const NODE_VERSION: &'static str = "1.15.4";
 
 // For a 16-ary Merkle Prefix Trie, we can expect at most 16 32-byte hashes per node
 // plus some overhead: