diff --git a/Cargo.lock b/Cargo.lock
index 257f1d5..79cdab2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -716,7 +716,7 @@ checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
 
 [[package]]
 name = "merklemap-cli"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "anyhow",
  "chrono",
diff --git a/Cargo.toml b/Cargo.toml
index 7429ce2..b58a2b9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "merklemap-cli"
-version = "0.3.0"
+version = "0.4.0"
 edition = "2021"
 license = "MIT"
 description = "A CLI client for the merklemap.com API"
@@ -17,3 +17,7 @@ anyhow = "1.0"
 futures = "0.3.30"
 chrono = "0.4.38"
 indicatif = "0.17"
+
+[profile.release]
+codegen-units = 1
+lto = "fat"