diff --git a/Cargo.lock b/Cargo.lock
index 59a4907..3ed550e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -903,7 +903,7 @@ dependencies = [
 
 [[package]]
 name = "psa-update"
-version = "1.0.2"
+version = "1.0.3"
 dependencies = [
  "anyhow",
  "clap",
diff --git a/src/main.rs b/src/main.rs
index 1600af1..3192695 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -54,7 +54,7 @@ async fn main() -> Result<(), Error> {
         .get_matches();
 
     let interactive = !matches.contains_id("silent");
-    let vin = matches.value_of("VIN");
+    let vin = matches.value_of("VIN").map(|s| s.to_uppercase());
     let vin_provided_as_arg = vin.is_some();
     let map = matches.value_of("map");