diff --git a/runtime/tests/runtime-signing.test.mjs b/runtime/tests/runtime-signing.test.mjs
index 7032880..db5ba90 100644
--- a/runtime/tests/runtime-signing.test.mjs
+++ b/runtime/tests/runtime-signing.test.mjs
@@ -437,6 +437,7 @@ test("full chain clean -> summarize -> classify verifies with schema using parti
     RECEIPT_SIGNING_PUBLIC_KEY_B64: keys.publicRaw32B64,
     RECEIPT_SIGNER_ID: "runtime.commandlayer.eth",
     VERIFY_SCHEMA_CACHED_ONLY: "0",
+    SCHEMA_FETCH_TIMEOUT_MS: "50",
   });
 
   async function runVerb(base, verb, content) {