diff --git a/.changeset/arweave-graphql-errors.md b/.changeset/arweave-graphql-errors.md
new file mode 100644
index 0000000000..8bafee70e5
--- /dev/null
+++ b/.changeset/arweave-graphql-errors.md
@@ -0,0 +1,5 @@
+---
+'@0xsequence/sessions': patch
+---
+
+Throw a descriptive error when the Arweave GraphQL gateway returns a non-2xx response, instead of failing to parse an HTML error page as JSON
diff --git a/packages/sessions/src/trackers/arweave.ts b/packages/sessions/src/trackers/arweave.ts
index d0919964cb..2f57ead2cc 100644
--- a/packages/sessions/src/trackers/arweave.ts
+++ b/packages/sessions/src/trackers/arweave.ts
@@ -578,6 +578,10 @@ async function findItems(
       await new Promise(resolve => setTimeout(resolve, rateLimitRetryDelayMs))
     }
 
+    if (!response.ok) {
+      throw new Error(`${graphqlUrl} returned ${response.status} ${response.statusText}`)
+    }
+
     const {
       data: { transactions }
     } = await response.json()
diff --git a/packages/sessions/tests/arweave.spec.ts b/packages/sessions/tests/arweave.spec.ts
index 44bc4692b0..a2ee62cbf7 100644
--- a/packages/sessions/tests/arweave.spec.ts
+++ b/packages/sessions/tests/arweave.spec.ts
@@ -15,7 +15,7 @@ class MockProvider extends ethers.AbstractProvider {
 }
 
 describe('Arweave config reader', () => {
-  const options = { namespace: 'xOovxYFkIwBpEwSi', owners: ['lJYCA4xBPJeZSgr9AF_4pHp4HVGvTOa4NYKJRoMBP5c'] }
+  const options = { namespace: 'xOovxYFkIwBpEwSi', owners: ['0xB5c3023dbEcE7a6Bb78014000CD1C8ce940B50a0'] }
   const arweave = new trackers.arweave.ArweaveReader(options)
   const sessions = new trackers.remote.RemoteConfigTracker('http://localhost:5555')
   const provider = new MockProvider()