diff --git a/src/bare-metal/microcontrollers/examples/Cargo.toml b/src/bare-metal/microcontrollers/examples/Cargo.toml
index 64e7c8bb..7f90057a 100644
--- a/src/bare-metal/microcontrollers/examples/Cargo.toml
+++ b/src/bare-metal/microcontrollers/examples/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2021"
 publish = false
 
 [dependencies]
-cortex-m-rt = "0.7.4"
+cortex-m-rt = "0.7.3"
 embedded-hal = "1.0.0"
 microbit-v2 = "0.14.0"
 nrf52833-hal = "0.17.1"
diff --git a/src/exercises/bare-metal/compass/Cargo.toml b/src/exercises/bare-metal/compass/Cargo.toml
index 9739127b..b5053ce4 100644
--- a/src/exercises/bare-metal/compass/Cargo.toml
+++ b/src/exercises/bare-metal/compass/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2021"
 publish = false
 
 [dependencies]
-cortex-m-rt = "0.7.4"
+cortex-m-rt = "0.7.3"
 embedded-hal = "1.0.0"
 lsm303agr = "1.0.0"
 microbit-v2 = "0.14.0"