diff --git a/.cspell.json b/.cspell.json
index 22aecbaec8..54d4559034 100644
--- a/.cspell.json
+++ b/.cspell.json
@@ -81,6 +81,7 @@
     "hada",
     "hashicorp",
     "Healthcheck",
+    "HSTS",
     "htlc",
     "Htlc",
     "HTLC",
diff --git a/extensions/cactus-plugin-htlc-coordinator-besu/src/test/typescript/integration/plugin-htlc-coordinator/counterparty-htlc-endpoint.test.ts b/extensions/cactus-plugin-htlc-coordinator-besu/src/test/typescript/integration/plugin-htlc-coordinator/counterparty-htlc-endpoint.test.ts
index 6ccf709f72..2815325d73 100644
--- a/extensions/cactus-plugin-htlc-coordinator-besu/src/test/typescript/integration/plugin-htlc-coordinator/counterparty-htlc-endpoint.test.ts
+++ b/extensions/cactus-plugin-htlc-coordinator-besu/src/test/typescript/integration/plugin-htlc-coordinator/counterparty-htlc-endpoint.test.ts
@@ -253,11 +253,6 @@ test(testCase, async (t: Test) => {
 
   const response = await htlcCoordinatorBesuApiClient.ownHtlcV1(ownHTLCRequest);
   t.equal(response.status, 200, "response status is 200 OK");
-  t.equal(
-    response.headers["Strict-Transport-Security"],
-    "max-age=31536000; includeSubDomains; preload",
-    "response header is max-age=31536000; includeSubDomains; preload OK",
-  );
   t.equal(response.data.success, true, "response success is true");
   t.ok(
     response.data,
@@ -300,8 +295,9 @@ test(testCase, async (t: Test) => {
     counterpartyHTLCRequest,
   );
   t.equal(response2.status, 200, "response status is 200 OK");
+  const hstsHeader = response2.headers["strict-transport-security"];
   t.equal(
-    response2.headers["Strict-Transport-Security"],
+    hstsHeader,
     "max-age=31536000; includeSubDomains; preload",
     "response header is max-age=31536000; includeSubDomains; preload OK",
   );