1 files changed, 1 insertions, 1 deletions

diff --git a/docs/examples/layer-by-layer/blinky-pac/Cargo.toml b/docs/examples/layer-by-layer/blinky-pac/Cargo.toml
index cf2d7fede..155c41ec6 100644
--- a/docs/examples/layer-by-layer/blinky-pac/Cargo.toml
+++ b/docs/examples/layer-by-layer/blinky-pac/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2021"
 license = "MIT OR Apache-2.0"
 
 [dependencies]
-cortex-m = "0.7"
+cortex-m = { version = "0.7", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7"
 stm32-metapac = { version = "16", features = ["stm32l475vg"] }