diff --git a/Cargo.lock b/Cargo.lock
index dc83a6b..1b99dca 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -146,9 +146,9 @@ dependencies = [
 
 [[package]]
 name = "cortex-m-rt"
-version = "0.7.3"
+version = "0.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ee84e813d593101b1723e13ec38b6ab6abbdbaaa4546553f5395ed274079ddb1"
+checksum = "2722f5b7d6ea8583cffa4d247044e280ccbb9fe501bed56552e2ba48b02d5f3d"
 dependencies = [
  "cortex-m-rt-macros",
 ]