diff --git a/.github/workflows/supported-refs.yaml b/.github/workflows/allowed-refs.yaml
similarity index 100%
rename from .github/workflows/supported-refs.yaml
rename to .github/workflows/allowed-refs.yaml
diff --git a/src/supported_refs.rs b/src/supported_refs.rs
deleted file mode 100644
index 2e14692..0000000
--- a/src/supported_refs.rs
+++ /dev/null
@@ -1,43 +0,0 @@
-use crate::error::FlakeCheckerError;
-
-use serde::Deserialize;
-
-const SUPPORTED_REFS_URL: &str = "https://prometheus.nixos.org/api/v1/query?query=channel_revision";
-
-#[derive(Deserialize)]
-struct Response {
-    data: Data,
-}
-
-#[derive(Deserialize)]
-struct Data {
-    result: Vec<DataResult>,
-}
-
-#[derive(Deserialize)]
-struct DataResult {
-    metric: Metric,
-}
-
-#[derive(Deserialize)]
-struct Metric {
-    channel: String,
-    current: String,
-}
-
-pub(crate) fn check(supported_refs: Vec<String>) -> Result<bool, FlakeCheckerError> {
-    Ok(get()? == supported_refs)
-}
-
-pub(crate) fn get() -> Result<Vec<String>, FlakeCheckerError> {
-    let officially_supported: Vec<String> = reqwest::blocking::get(SUPPORTED_REFS_URL)?
-        .json::<Response>()?
-        .data
-        .result
-        .iter()
-        .filter(|res| res.metric.current == "1")
-        .map(|res| res.metric.channel.clone())
-        .collect();
-
-    Ok(officially_supported)
-}