diff --git a/Cargo.toml b/Cargo.toml
index c514c8f988..7cc3886bc5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -54,7 +54,7 @@ cortex-m = "0.6.0"
 cortex-m-rtfm-macros = { path = "macros" }
 rtfm-core = { git = "https://github.com/japaric/rtfm-core" }
 cortex-m-rt = "0.6.9"
-heapless = "0.5.0-alpha.2"
+heapless = "0.5.0"
 
 [dependencies.microamp]
 optional = true