diff --git a/xtask/Cargo.toml b/xtask/Cargo.toml
index 06cb7e2..efe085f 100644
--- a/xtask/Cargo.toml
+++ b/xtask/Cargo.toml
@@ -12,7 +12,9 @@ hidapi = "1.2.2"
 ihex = "1.1.2"
 pids = { path = "../common/pids" }
 rusb = "0.5.5"
-#serialport = "3.3.0"
+# Note: we are using a fork due compatibility problems.
+# See https://github.com/ferrous-systems/embedded-trainings-2020/issues/148 for more details.
+# serialport = "3.3.0"
 serialport = { git = "https://gitlab.com/spookyvision1/serialport-rs.git", branch = "fix-usb-deprecation"}
 tempfile = "3.2.0"
-xmas-elf = "0.7.0"
\ No newline at end of file
+xmas-elf = "0.7.0"