diff --git a/scripts/fetch-pin-state.js b/scripts/fetch-pin-state.js
index 37e340a6..53400afd 100644
--- a/scripts/fetch-pin-state.js
+++ b/scripts/fetch-pin-state.js
@@ -1,8 +1,9 @@
 /**
  * fetch-pin-state.js
  *
- * Reads bluefin-lts HWE workflow YAML files from the GitHub Contents API
- * and extracts any `kernel-pin` (or future `*-pin`) workflow inputs.
+ * Reads the active bluefin-lts build workflow YAML from the GitHub Contents
+ * API and extracts any `kernel_pin` (or future `*_pin`) input passed to the
+ * shared projectbluefin/actions reusable-build.yml workflow.
  * Writes static/data/stream-pins.json consumed by the docs UI to render
  * 📌 "Pinned" badges next to intentionally-held component versions.
  *
@@ -17,12 +18,10 @@ const OUTPUT_FILE = path.join(__dirname, "..", "static", "data", "stream-pins.js
 const WORKFLOWS_TO_CHECK = [
   {
     repo: "projectbluefin/bluefin-lts",
-    path: ".github/workflows/build-regular-hwe.yml",
-    stream: "bluefin-lts",
-  },
-  {
-    repo: "projectbluefin/bluefin-lts",
-    path: ".github/workflows/build-dx-hwe.yml",
+    // bluefin-lts is HWE-only (no separate build-regular-hwe.yml/build-dx-hwe.yml
+    // since #437); build-regular.yml is the active workflow and passes an optional
+    // `kernel_pin` input to the shared reusable-build.yml when a kernel is pinned.
+    path: ".github/workflows/build-regular.yml",
     stream: "bluefin-lts",
   },
 ];
@@ -47,11 +46,11 @@ async function fetchWorkflowContent(repo, filePath) {
 }
 
 /**
- * Extract `kernel-pin` value from a workflow YAML string.
- * Matches the pattern:   kernel-pin: <version>
+ * Extract `kernel_pin` value from a workflow YAML string.
+ * Matches the pattern:   kernel_pin: <version>
  */
 function extractKernelPin(yamlContent) {
-  const match = yamlContent.match(/kernel-pin:\s*([^\s\n#]+)/);
+  const match = yamlContent.match(/kernel_pin:\s*([^\s\n#]+)/);
   return match ? match[1].trim() : null;
 }
 
@@ -89,7 +88,7 @@ async function main() {
       if (kernelPin) {
         console.log(`  ${stream} hweKernel pin: ${kernelPin}`);
       } else {
-        console.log(`  ${stream}: no kernel-pin found (floating)`);
+        console.log(`  ${stream}: no kernel_pin found (floating)`);
       }
     } catch (err) {
       console.warn(`  Warning: could not fetch ${repo}/${filePath}: ${err.message}`);
diff --git a/scripts/fetch-pin-state.test.js b/scripts/fetch-pin-state.test.js
index beab02a9..53cabca2 100644
--- a/scripts/fetch-pin-state.test.js
+++ b/scripts/fetch-pin-state.test.js
@@ -6,21 +6,21 @@ const {
   extractKernelPin,
 } = require("./fetch-pin-state.js");
 
-test("extractKernelPin reads kernel-pin values and ignores missing pins", () => {
-  assert.equal(extractKernelPin("kernel-pin: 6.12.30-204 # comment"), "6.12.30-204");
-  assert.equal(extractKernelPin("name: build-regular-hwe"), null);
+test("extractKernelPin reads kernel_pin values and ignores missing pins", () => {
+  assert.equal(extractKernelPin("kernel_pin: 6.12.30-204 # comment"), "6.12.30-204");
+  assert.equal(extractKernelPin("name: build-regular"), null);
 });
 
 test("applyKernelPin stores a stream pin and rejects conflicting values", () => {
   const streamPins = {};
 
-  applyKernelPin(streamPins, "bluefin-lts", "6.12.30-204", "build-regular-hwe.yml");
+  applyKernelPin(streamPins, "bluefin-lts", "6.12.30-204", "build-regular.yml");
   assert.deepEqual(streamPins, {
     "bluefin-lts": { hweKernel: "6.12.30-204" },
   });
 
   assert.throws(
-    () => applyKernelPin(streamPins, "bluefin-lts", "6.12.31-204", "build-dx-hwe.yml"),
+    () => applyKernelPin(streamPins, "bluefin-lts", "6.12.31-204", "build-regular.yml"),
     /Conflicting hweKernel pins/,
   );
 });
diff --git a/static/data/stream-pins.json b/static/data/stream-pins.json
index 2d9fb50a..73638d15 100644
--- a/static/data/stream-pins.json
+++ b/static/data/stream-pins.json
@@ -1,6 +1,7 @@
 {
-  "generatedAt": "2026-07-21T05:48:34.788Z",
+  "generatedAt": "2026-09-08T15:03:46.365Z",
   "streams": {
+    "bluefin-lts": {},
     "bluefin-stable": {}
   }
 }