diff --git a/src/exercises/bare-metal/rtc/Cargo.lock b/src/exercises/bare-metal/rtc/Cargo.lock
index 0fb7f1d0..caec7462 100644
--- a/src/exercises/bare-metal/rtc/Cargo.lock
+++ b/src/exercises/bare-metal/rtc/Cargo.lock
@@ -1,6 +1,6 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
+version = 4
 
 [[package]]
 name = "arm-gic"
@@ -25,18 +25,18 @@ checksum = "8f68f53c83ab957f72c32642f3868eec03eb974d1fb82e453128456482613d36"
 
 [[package]]
 name = "cc"
-version = "1.2.11"
+version = "1.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e4730490333d58093109dc02c23174c3f4d490998c3fed3cc8e82d57afedb9cf"
+checksum = "be714c154be609ec7f5dad223a33bf1482fff90472de28f7362806e6d4832b8c"
 dependencies = [
  "shlex",
 ]
 
 [[package]]
 name = "chrono"
-version = "0.4.39"
+version = "0.4.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7e36cc9d416881d2e24f9a963be5fb1cd90966419ac844274161d10488b3e825"
+checksum = "1a7964611d71df112cb1730f2ee67324fcf4d0fc6606acbbe9bfe06df124637c"
 dependencies = [
  "num-traits",
 ]
@@ -53,9 +53,9 @@ dependencies = [
 
 [[package]]
 name = "log"
-version = "0.4.25"
+version = "0.4.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "04cbf5b083de1c7e0222a7a51dbfdba1cbe1c6ab0b15e29fff3f6c077fd9cd9f"
+checksum = "30bde2b3dc3671ae49d8e2e9f044c7c005836e7a023ee57cffa25ab82764bb9e"
 
 [[package]]
 name = "num-traits"
diff --git a/src/exercises/bare-metal/rtc/Cargo.toml b/src/exercises/bare-metal/rtc/Cargo.toml
index 0e020a5a..394ed621 100644
--- a/src/exercises/bare-metal/rtc/Cargo.toml
+++ b/src/exercises/bare-metal/rtc/Cargo.toml
@@ -9,10 +9,10 @@ publish = false
 [dependencies]
 arm-gic = "0.1.2"
 bitflags = "2.8.0"
-chrono = { version = "0.4.39", default-features = false }
-log = "0.4.25"
+chrono = { version = "0.4.40", default-features = false }
+log = "0.4.26"
 smccc = "0.1.1"
 spin = "0.9.8"
 
 [build-dependencies]
-cc = "1.2.11"
+cc = "1.2.16"