diff --git a/backend/test/setup.ts b/backend/test/setup.ts
index 4501da899..d2f24bd40 100644
--- a/backend/test/setup.ts
+++ b/backend/test/setup.ts
@@ -2,7 +2,7 @@
 // https://stackoverflow.com/questions/68468203/why-am-i-getting-textencoder-is-not-defined-in-jest
 import { TextEncoder, TextDecoder } from 'util'
 global.TextEncoder = TextEncoder
-global.TextDecoder = TextDecoder
+global.TextDecoder = TextDecoder as any
 
 // Metascraper takes longer nowadays, double time
 jest.setTimeout(10000)
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