diff --git a/Cargo.lock b/Cargo.lock
index 9148765..769d7b4 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1380,7 +1380,7 @@ dependencies = [
 
 [[package]]
 name = "snpguest"
-version = "0.4.0"
+version = "0.4.1"
 dependencies = [
  "anyhow",
  "asn1-rs",
diff --git a/Cargo.toml b/Cargo.toml
index 0a53f2b..d98a280 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "snpguest"
-version = "0.4.0"
+version = "0.4.1"
 authors = ["The VirTEE Project Developers"]
 edition = "2021"
 license = "Apache-2.0"
diff --git a/src/fetch.rs b/src/fetch.rs
index d8f98b0..8045a60 100644
--- a/src/fetch.rs
+++ b/src/fetch.rs
@@ -134,7 +134,8 @@ mod cert_authority {
 
         // Should make -> https://kdsintf.amd.com/vcek/v1/{SEV_PROD_NAME}/cert_chain
         let url: String = format!(
-            "{KDS_CERT_SITE}/{endorser}/v1/{}/{KDS_CERT_CHAIN}",
+            "{KDS_CERT_SITE}/{}/v1/{}/{KDS_CERT_CHAIN}",
+            endorser.to_string().to_lowercase(),
             processor_model.to_kds_url()
         );