diff --git a/CHANGELOG.md b/CHANGELOG.md
index a77f1e9..c36d2ba 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 
 ### Fixed
+- Return an error if GET request fails (#471)
 
 ### Changed
 
diff --git a/src/error.rs b/src/error.rs
index e3920b9..ed7ba92 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -14,6 +14,10 @@ pub enum Error {
     #[error("Failed to query GitHub API: Invalid Github token")]
     GithubTokenInvalid,
 
+    #[diagnostic(code(espup::toolchain::http_error))]
+    #[error("HTTP GET Error: {0}")]
+    HttpError(String),
+
     #[diagnostic(code(espup::toolchain::rust::install_riscv_target))]
     #[error("Failed to Install RISC-V targets for '{0}' toolchain")]
     InstallRiscvTarget(String),
diff --git a/src/toolchain/mod.rs b/src/toolchain/mod.rs
index 01f030e..b1abaf6 100644
--- a/src/toolchain/mod.rs
+++ b/src/toolchain/mod.rs
@@ -120,7 +120,11 @@ pub async fn download_file(
 
     let resp = {
         let client = build_proxy_async_client()?;
-        client.get(&url).send().await?
+        let resp = client.get(&url).send().await?;
+        if !resp.status().is_success() {
+            return Err(Error::HttpError(resp.status().to_string()));
+        }
+        resp
     };
     let bytes = {
         let len = resp.content_length();