diff --git a/Cargo.lock b/Cargo.lock
index 8e2f5d39..e7df13d9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -996,7 +996,6 @@ dependencies = [
  "cfg-if",
  "chrono",
  "cortex-m",
- "cortex-m-rt",
  "critical-section",
  "defmt 0.3.100",
  "document-features",
diff --git a/embedded-service/Cargo.toml b/embedded-service/Cargo.toml
index 8185264d..3211cbe9 100644
--- a/embedded-service/Cargo.toml
+++ b/embedded-service/Cargo.toml
@@ -44,8 +44,7 @@ features = ["serde_derive"]
 [target.'cfg(not(target_has_atomic = "ptr"))'.dependencies]
 portable-atomic.workspace = true
 
-[target.'cfg(target_os = "none")'.dependencies]
-cortex-m-rt.workspace = true
+[target.'cfg(all(target_os = "none", target_arch = "arm"))'.dependencies]
 cortex-m.workspace = true
 
 [dev-dependencies]
diff --git a/examples/pico-de-gallo/Cargo.lock b/examples/pico-de-gallo/Cargo.lock
index 87248daf..af0255c9 100644
--- a/examples/pico-de-gallo/Cargo.lock
+++ b/examples/pico-de-gallo/Cargo.lock
@@ -376,26 +376,6 @@ dependencies = [
  "volatile-register",
 ]
 
-[[package]]
-name = "cortex-m-rt"
-version = "0.7.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "801d4dec46b34c299ccf6b036717ae0fce602faa4f4fe816d9013b9a7c9f5ba6"
-dependencies = [
- "cortex-m-rt-macros",
-]
-
-[[package]]
-name = "cortex-m-rt-macros"
-version = "0.7.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e37549a379a9e0e6e576fd208ee60394ccb8be963889eebba3ffe0980364f472"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
 [[package]]
 name = "critical-section"
 version = "1.2.0"
@@ -623,7 +603,6 @@ dependencies = [
  "bitvec",
  "cfg-if",
  "cortex-m",
- "cortex-m-rt",
  "critical-section",
  "document-features",
  "embassy-futures",
diff --git a/examples/rt633/Cargo.lock b/examples/rt633/Cargo.lock
index 10c51c85..ea72d5a3 100644
--- a/examples/rt633/Cargo.lock
+++ b/examples/rt633/Cargo.lock
@@ -642,7 +642,6 @@ dependencies = [
  "bitvec",
  "cfg-if",
  "cortex-m",
- "cortex-m-rt",
  "critical-section",
  "defmt 0.3.100",
  "document-features",
diff --git a/examples/rt685s-evk/Cargo.lock b/examples/rt685s-evk/Cargo.lock
index f227b319..e8ffda55 100644
--- a/examples/rt685s-evk/Cargo.lock
+++ b/examples/rt685s-evk/Cargo.lock
@@ -728,7 +728,6 @@ dependencies = [
  "bitvec",
  "cfg-if",
  "cortex-m",
- "cortex-m-rt",
  "critical-section",
  "defmt 0.3.100",
  "document-features",
diff --git a/examples/std/Cargo.lock b/examples/std/Cargo.lock
index cf4b7193..03b0167f 100644
--- a/examples/std/Cargo.lock
+++ b/examples/std/Cargo.lock
@@ -370,26 +370,6 @@ dependencies = [
  "volatile-register",
 ]
 
-[[package]]
-name = "cortex-m-rt"
-version = "0.7.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "801d4dec46b34c299ccf6b036717ae0fce602faa4f4fe816d9013b9a7c9f5ba6"
-dependencies = [
- "cortex-m-rt-macros",
-]
-
-[[package]]
-name = "cortex-m-rt-macros"
-version = "0.7.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e37549a379a9e0e6e576fd208ee60394ccb8be963889eebba3ffe0980364f472"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 2.0.106",
-]
-
 [[package]]
 name = "critical-section"
 version = "1.2.0"
@@ -791,7 +771,6 @@ dependencies = [
  "bitvec",
  "cfg-if",
  "cortex-m",
- "cortex-m-rt",
  "critical-section",
  "document-features",
  "embassy-futures",