diff --git a/packages/github/src/internal/utils.ts b/packages/github/src/internal/utils.ts
index fb4a0225..2c520789 100644
--- a/packages/github/src/internal/utils.ts
+++ b/packages/github/src/internal/utils.ts
@@ -30,7 +30,7 @@ export function getProxyAgentDispatcher(
 
 export function getProxyFetch(destinationUrl): typeof fetch {
   const httpDispatcher = getProxyAgentDispatcher(destinationUrl)
-  const proxyFetch = (url, opts) => {
+  const proxyFetch: typeof fetch = async (url, opts) => {
     return fetch(url, {
       ...opts,
       dispatcher: httpDispatcher