diff --git a/src/github.ts b/src/github.ts
index 19ddbfc..05b86d4 100644
--- a/src/github.ts
+++ b/src/github.ts
@@ -7,6 +7,7 @@ export class OctokitGitHub {
   constructor(githubToken: string) {
     Octokit.plugin(require("@octokit/plugin-throttling"));
     this.octokit = new Octokit({
+      baseUrl: process.env["GITHUB_API_URL"] || "https://api.github.com",
       auth: githubToken,
       throttle: {
         onRateLimit: (retryAfter, options) => {