diff --git a/dist/setup/index.js b/dist/setup/index.js
index c2f8ded..971c7ab 100644
--- a/dist/setup/index.js
+++ b/dist/setup/index.js
@@ -122822,7 +122822,7 @@ const plugin_paginate_rest_1 = __nccwpck_require__(93779);
 const plugin_rest_endpoint_methods_1 = __nccwpck_require__(49210);
 const undici_1 = __nccwpck_require__(46752);
 const DEFAULTS = {
-    baseUrl: getApiBaseUrl(),
+    baseUrl: "https://api.github.com",
     userAgent: "setup-uv",
 };
 function getProxyAgent() {
@@ -122851,9 +122851,6 @@ exports.Octokit = core_1.Octokit.plugin(plugin_paginate_rest_1.paginateRest, plu
         },
     };
 });
-function getApiBaseUrl() {
-    return process.env.GITHUB_API_URL || "https://api.github.com";
-}
 
 
 /***/ }),
diff --git a/dist/update-known-checksums/index.js b/dist/update-known-checksums/index.js
index a3054da..c58bb38 100644
--- a/dist/update-known-checksums/index.js
+++ b/dist/update-known-checksums/index.js
@@ -58103,7 +58103,7 @@ const plugin_paginate_rest_1 = __nccwpck_require__(3779);
 const plugin_rest_endpoint_methods_1 = __nccwpck_require__(9210);
 const undici_1 = __nccwpck_require__(6752);
 const DEFAULTS = {
-    baseUrl: getApiBaseUrl(),
+    baseUrl: "https://api.github.com",
     userAgent: "setup-uv",
 };
 function getProxyAgent() {
@@ -58132,9 +58132,6 @@ exports.Octokit = core_1.Octokit.plugin(plugin_paginate_rest_1.paginateRest, plu
         },
     };
 });
-function getApiBaseUrl() {
-    return process.env.GITHUB_API_URL || "https://api.github.com";
-}
 
 
 /***/ }),
diff --git a/src/utils/octokit.ts b/src/utils/octokit.ts
index 4cf22ba..e96ac05 100644
--- a/src/utils/octokit.ts
+++ b/src/utils/octokit.ts
@@ -13,7 +13,7 @@ import { fetch as undiciFetch, ProxyAgent, type RequestInit } from "undici";
 export type { RestEndpointMethodTypes } from "@octokit/plugin-rest-endpoint-methods";
 
 const DEFAULTS = {
-  baseUrl: getApiBaseUrl(),
+  baseUrl: "https://api.github.com",
   userAgent: "setup-uv",
 };
 
@@ -56,7 +56,3 @@ export const Octokit: typeof Core &
 );
 
 export type Octokit = InstanceType<typeof Octokit>;
-
-function getApiBaseUrl(): string {
-  return process.env.GITHUB_API_URL || "https://api.github.com";
-}