diff --git a/frontend/components/dashboard/scan-terminal/__tests__/proxyCachePolicy.test.ts b/frontend/components/dashboard/scan-terminal/__tests__/proxyCachePolicy.test.ts
index bdad23f0..eeb2d520 100644
--- a/frontend/components/dashboard/scan-terminal/__tests__/proxyCachePolicy.test.ts
+++ b/frontend/components/dashboard/scan-terminal/__tests__/proxyCachePolicy.test.ts
@@ -56,6 +56,16 @@ export function runTests() {
     /hasDirectBackendApiBaseUrl/,
     "public scan terminal requests should only attach user auth in direct-backend mode so CDN caches can be shared through the Next proxy",
   );
+  assert.match(
+    scanTerminalClientSource,
+    /SCAN_TERMINAL_PAYLOAD_VERSION/,
+    "scan terminal client should include a stable payload version in the URL so CDN caches roll forward after response-shape optimizations",
+  );
+  assert.match(
+    scanTerminalClientSource,
+    /params\.set\("_v",\s*SCAN_TERMINAL_PAYLOAD_VERSION\)/,
+    "scan terminal client should vary the CDN cache key without changing backend scan filters",
+  );
 
   const overviewProxySource = fs.readFileSync(
     path.join(
diff --git a/frontend/components/dashboard/scan-terminal/scan-terminal-client.ts b/frontend/components/dashboard/scan-terminal/scan-terminal-client.ts
index c46bfcf9..c8846862 100644
--- a/frontend/components/dashboard/scan-terminal/scan-terminal-client.ts
+++ b/frontend/components/dashboard/scan-terminal/scan-terminal-client.ts
@@ -22,6 +22,7 @@ export const scanTerminalQueryPolicy = {
   autoRefreshMs: null,
   manualForceRefreshCooldownMs: 2 * 60_000,
 } as const;
+const SCAN_TERMINAL_PAYLOAD_VERSION = "runway-slim-v1";
 
 type TerminalQueryOptions = {
   forceRefresh?: boolean;
@@ -142,6 +143,7 @@ async function getTerminal({
   if (Number.isFinite(timezoneOffsetSeconds)) {
     params.set("timezone_offset_seconds", String(Math.trunc(Number(timezoneOffsetSeconds))));
   }
+  params.set("_v", SCAN_TERMINAL_PAYLOAD_VERSION);
   if (forceRefresh) {
     params.set("_ts", String(Date.now()));
   }