diff --git a/Cargo.toml b/Cargo.toml
index a91ac0f..b8c9880 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,7 +18,7 @@ cddl = "0.9.1"
 clap = { version = "4.2.4", features = ["derive"] }
 codegen = { git = "https://github.com/dcSpark/codegen", branch = "master" }
 either = "1.8.1"
-once_cell = "1.17.1"
+once_cell = "1.18.0"
 nom = "7.1.1"
 pathdiff = "0.2.1"
 which = { version = "4.4.0", optional = true, default-features = false }