diff --git a/Cargo.toml b/Cargo.toml
index 4981dfc..54e0874 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,6 +11,9 @@ documentation = "https://docs.rs/electrs/"
 readme = "README.md"
 edition = "2018"
 
+[profile.release]
+lto = true
+
 [dependencies]
 arrayref = "0.3"
 base64 = "0.10"
diff --git a/RELEASE-NOTES.md b/RELEASE-NOTES.md
index a0960fe..28afb2e 100644
--- a/RELEASE-NOTES.md
+++ b/RELEASE-NOTES.md
@@ -1,6 +1,7 @@
 # 0.6.2 (TBD)
 
 * Support Rust 1.32 (for Debian)
+* Build with LTO
 
 # 0.6.1 (9 May 2019)