diff --git a/beginner/apps/Cargo.toml b/beginner/apps/Cargo.toml
index 7716992..633f9b2 100644
--- a/beginner/apps/Cargo.toml
+++ b/beginner/apps/Cargo.toml
@@ -14,10 +14,6 @@ panic-probe = { version = "0.3.0", features = ["print-defmt"] }
 defmt = "0.3.0"
 defmt-rtt = "0.3.1"
 
-[dependencies.heapless]
-version = "0.7.1"
-features = ["defmt-impl"]
-
 # optimize code in both profiles
 [profile.dev]
 codegen-units = 1