diff --git a/packages/ws-worker/src/events/run-error.ts b/packages/ws-worker/src/events/run-error.ts
index d1cd4bd14..9840b4897 100644
--- a/packages/ws-worker/src/events/run-error.ts
+++ b/packages/ws-worker/src/events/run-error.ts
@@ -6,6 +6,7 @@ import { RUN_COMPLETE } from '../events';
 import { Context, onJobError } from '../api/execute';
 import logFinalReason from '../util/log-final-reason';
 import { sendEvent } from '../util/send-event';
+import { getIgnoredErrorSeverity } from '../util/ignored-errors';
 
 export default async function onRunError(
   context: Context,
@@ -16,6 +17,9 @@ export default async function onRunError(
   try {
     // Ok, let's try that, let's just generate a reason from the event
     const reason = calculateJobExitReason('', { data: {} }, event);
+    const severityOverride = getIgnoredErrorSeverity(reason.error_message);
+    if (severityOverride) reason.reason = severityOverride;
+
     // If there's a job still running, make sure it gets marked complete
     if (state.activeJob) {
       await onJobError(context, { error: event });
diff --git a/packages/ws-worker/src/server.ts b/packages/ws-worker/src/server.ts
index 70e2ce9fc..25ea9d220 100644
--- a/packages/ws-worker/src/server.ts
+++ b/packages/ws-worker/src/server.ts
@@ -30,6 +30,7 @@ import type { Socket, Channel } from './types';
 import { convertRun } from './util';
 import parseWorkloops from './util/parse-workloops';
 import getDefaultWorkloopConfig from './util/get-default-workloop-config';
+import { matchesIgnoredError } from './util/ignored-errors';
 
 const exec = promisify(_exec);
 
@@ -247,6 +248,16 @@ function createServer(engine: RuntimeEngine, options: ServerOptions = {}) {
     Sentry.init({
       environment: options.sentryEnv,
       dsn: options.sentryDsn,
+      beforeSend(event, hint) {
+        const error = hint.originalException as Error | undefined;
+        const message = error?.message ?? event.message ?? '';
+
+        if (matchesIgnoredError(message)) {
+          return null;
+        }
+
+        return event;
+      },
     });
     Sentry.setupKoaErrorHandler(app);
   }
diff --git a/packages/ws-worker/src/util/ignored-errors.ts b/packages/ws-worker/src/util/ignored-errors.ts
new file mode 100644
index 000000000..53ea57a51
--- /dev/null
+++ b/packages/ws-worker/src/util/ignored-errors.ts
@@ -0,0 +1,25 @@
+import type { ExitReasonStrings } from '@openfn/lexicon/lightning';
+
+type IgnoredError = {
+  pattern: RegExp; // matches errors to be ignored by sentry
+  severity?: ExitReasonStrings;
+};
+
+// list of errors here!
+export const IGNORED_ERROR_PATTERNS: IgnoredError[] = [
+  { pattern: /OAuth token has expired/i, severity: 'crash' },
+];
+
+const findIgnoredError = (message?: string | null) => {
+  if (!message) {
+    return undefined;
+  }
+  return IGNORED_ERROR_PATTERNS.find(({ pattern }) => pattern.test(message));
+};
+
+export const matchesIgnoredError = (message?: string | null): boolean =>
+  Boolean(findIgnoredError(message));
+
+export const getIgnoredErrorSeverity = (
+  message?: string | null
+): ExitReasonStrings | undefined => findIgnoredError(message)?.severity;