diff --git a/Cargo.toml b/Cargo.toml
index 0dfbaf7f..b4fe89ba 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,7 +16,7 @@ r0 = "0.2.1"
 [dev-dependencies]
 panic-semihosting = "0.3.0"
 panic-abort = "0.2.0"
-cortex-m = "0.5.4"
+cortex-m = "0.5.6"
 
 [features]
 device = []