diff --git a/Firmware-IEC/Cargo.lock b/Firmware-IEC/Cargo.lock
index a593520..d9bcc3a 100644
--- a/Firmware-IEC/Cargo.lock
+++ b/Firmware-IEC/Cargo.lock
@@ -453,9 +453,9 @@ dependencies = [
 
 [[package]]
 name = "rmodbus"
-version = "0.6.4"
+version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c0dd0f3c07109f3590c890c67b2632008a4877919599e1465f2fcc1e6edaa60e"
+checksum = "f3490656ba7538bfe1edfdb34525407aeb58a1e5802302f780fc68067032d608"
 dependencies = [
  "heapless",
  "ieee754",
diff --git a/Firmware-IEC/Cargo.toml b/Firmware-IEC/Cargo.toml
index b84ae50..c501b95 100644
--- a/Firmware-IEC/Cargo.toml
+++ b/Firmware-IEC/Cargo.toml
@@ -25,7 +25,7 @@ shared-bus = "0.2.5"
 usb-device = "0.2.9"
 usbd-serial = "0.1.1"
 heapless = "0.7.16"
-rmodbus = { version = "0.6.4", features = ["heapless"], default-features = false }
+rmodbus = { version = "0.7.3", features = ["heapless"], default-features = false }
 
 [profile.dev]
 codegen-units = 1