diff --git a/Cargo.toml b/Cargo.toml
index b8414a9..9c36fd8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -26,7 +26,7 @@ humantime = { version = "2.1.0", optional = true }
 tracing = { version = "0.1.25", optional = true }
 tracing-subscriber = { version = "0.2.16", optional = true }
 serde = { version = "1.0.130", optional = true }
-defmt = { version = "0.2.3", optional = true }
+defmt = { version = "0.3.4", optional = true }
 anyhow = { version = "1.0.44", optional = true }
 
 [dev-dependencies]