diff --git a/extensions/discord/src/client.proxy.test.ts b/extensions/discord/src/client.proxy.test.ts
index bf6dbf2a977..43012f35501 100644
--- a/extensions/discord/src/client.proxy.test.ts
+++ b/extensions/discord/src/client.proxy.test.ts
@@ -151,7 +151,7 @@ describe("createDiscordRestClient proxy support", () => {
         }
         const rest = createDiscordRequestClient("test-token", {
           baseUrl: `http://127.0.0.1:${address.port}`,
-          fetch: undiciFetch as typeof fetch,
+          fetch: undiciFetch as unknown as typeof fetch,
           queueRequests: false,
         });
         void rest
diff --git a/extensions/discord/src/proxy-request-client.ts b/extensions/discord/src/proxy-request-client.ts
index a78bc25aae2..7ecf777f448 100644
--- a/extensions/discord/src/proxy-request-client.ts
+++ b/extensions/discord/src/proxy-request-client.ts
@@ -301,7 +301,7 @@ class ProxyRequestClientCompat {
         files: undefined,
       };
       formData.append("payload_json", JSON.stringify(cleanedBody));
-      body = formData;
+      body = formData as unknown as BodyInit;
     } else if (data?.body != null) {
       headers.set("Content-Type", "application/json");
       body = data.rawBody ? (data.body as BodyInit) : JSON.stringify(data.body);