diff --git a/Cargo.toml b/Cargo.toml
index dc2c765..c519c7c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,7 +14,7 @@ keywords = ["logging", "hex", "dump", "binary"]
 [dependencies]
 
 [dev-dependencies]
-heapless = "0.7"
+heapless = "0.8"
 
 [features]
 default = ["alloc"]