diff --git a/advanced/common/usb/Cargo.toml b/advanced/common/usb/Cargo.toml
index a5273c1..b77a48e 100644
--- a/advanced/common/usb/Cargo.toml
+++ b/advanced/common/usb/Cargo.toml
@@ -6,4 +6,19 @@ name = "usb"
 version = "0.0.0"
 
 [dependencies]
-log = "0.4.8"
+defmt = "0.2.0"
+
+[features]
+# set defmt logging levels here
+default = [
+"defmt-default",
+# "dependency-a/defmt-trace",
+]
+
+# do NOT modify these features
+defmt-default = []
+defmt-trace = []
+defmt-debug = []
+defmt-info = []
+defmt-warn = []
+defmt-error = []
\ No newline at end of file
diff --git a/advanced/common/usb/src/lib.rs b/advanced/common/usb/src/lib.rs
index e3762d9..6e2dde6 100644
--- a/advanced/common/usb/src/lib.rs
+++ b/advanced/common/usb/src/lib.rs
@@ -5,6 +5,7 @@
 #![no_std]
 
 use core::num::NonZeroU8;
+use defmt;
 
 /// Device address assigned by the host; will be in the range 1..=127
 pub type Address = NonZeroU8;
@@ -77,7 +78,7 @@ impl Request {
                 Err(())
             }
         } else {
-            log::warn!("unhandled case in `Request` parser");
+            defmt::warn!("unhandled case in `Request` parser");
             Err(())
         }
     }