diff --git a/polkadot/node/primitives/src/lib.rs b/polkadot/node/primitives/src/lib.rs
index ea7bb6fdc293ccef33a89309833d8b8190bfad41..c119bdd47019eabec91d3fa1c296b77436bdf146 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 = "1.15.5";
+pub const NODE_VERSION: &'static str = "1.15.6";
 
 // For a 16-ary Merkle Prefix Trie, we can expect at most 16 32-byte hashes per node
 // plus some overhead: